Granthaalayah

EVIDENCE BASED LEARNING: AN ANALYSIS OF IMPACT ON RETENTION OF KNOWLEDGE

 

Prashant Thote *1Envelope, Gowri. S 2

*1 Gyanodaya Vidya Mandir, India

2 Gyanodaya Vidya Mandir, India

 

DOI: https://doi.org/10.29121/granthaalayah.v8.i10.2020.1883

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Article Type: Research Article

 

Article Citation: Prashant Thote, and Gowri. S. (2020). EVIDENCE BASED LEARNING: AN ANALYSIS OF IMPACT ON RETENTION OF KNOWLEDGE. International Journal of Research -GRANTHAALAYAH, 8(10), 224-235. https://doi.org/10.29121/granthaalayah.v8.i10.2020.1883

 

Received Date: 02 October 2020

 

Accepted Date: 31 October 2020

 

Keywords:

Chemistry

Learning

Conventional Methodology

Learning Outcomes and Innovations
ABSTRACT

Chemistry is a fundamental discipline of Science that accounts for day to day life at molecular level.  The major challenge in the classroom instructions is to bridge the gap between high demand of learning and low efforts of learners due to lack of motivation.  In this paper attempt is made to correlate the subject with day to day life.  The objectives of the classroom instructions are to make effective and efficient delivery of instruction, knowledge, skill, attitude and competence.  The aim of the present study is to make Chemistry subject vivid, joyful understanding of concept to stimulate learners intellectual curiosity to enhance the learning.  In this study total 50 students participate. The students are categorized into two groups (study group and the control group). Each group consists of 25 students.  Quasi experiment research design is applied. Data is collected by using question paper based on Revised Bloom’s Taxonomy (RBT) before and after the experiment. Result of the study reveals that the evidence-based learning approach is used for the classroom instructions and has positive impact on motivation, satisfaction and academic achievement. The present classroom instruction is beneficial because it correlates the subject with day today life and arouses the interest among the learners. Based on the findings of the study some suggestions are made.



 

1.      INTRODUCTION

 

“Education without application is just entertainment” – Tim Sanders

 

Learning climate influences learners’ achievement. Teaching –learning approach where learners are engaged with performing tasks are more advocating.  The students interact with their ambience for accumulating information, retrieve and use their knowledge, skill and competence in such a way that it is useful for the society at large. The students face challenges in learning Chemistry due to its abstract nature of concept, need for noteworthy time, committed efforts from learners and teachers also.  The contrast between the low input and high demands results in not satisfying performance from learner’s side and frustration on teacher’s side.

According to modern research, there are large numbers of learners who find it difficult to assimilate concepts during classroom instruction.  The low academic performance may be due to poor classroom instructions, ineffective teaching methodology, fragmented content knowledge and students with limited mental ability, not sufficient understanding and learners’ common sense. The classroom instructions can improve students’ learning by inspiring student’s curiosity in the subject.

In the present study the approach used for classroom instructions is to correlate the Chemistry subject with day to day life. Chemistry touches all spheres of life.  As a teacher for the past 25 years I am able to connect the depth of Chemistry with everyday life. One may find Chemistry in day to day life like in the air we breathe, food we eat, cleaning chemicals we use and literally in every object we touch and even in our emotions.

All main branches of Science – Biology, Chemistry and Physics are useful to the humanity in one way or other. But leading out of these is Chemistry.  There is hardly any aspect of our life where Chemistry does not have impacted.  The multicolor cloths we wear utilize different dyes, the cosmetics, creams, shampoos and detergents involve the skills of Chemistry.  The most vital of these are various medicines and drugs which are organic compound. We must be grateful to the chemists who carry out these researches in different parts of the world to synthesis new medicines. 

Chemistry teacher employs different teaching methodology in classroom instructions, some work with the students but others may not.  The important issue that arises in Science classroom instruction is presenting information through chalk and talk- the passive learning. Learners who receive this type of instructions remain inactive during the classroom instruction and are of the opinion that Chemistry knowledge is fixed and no additional action is required.  Students who are passive in the classroom instructions are likely to be the low achiever.             To felicitate learning in core subjects including Chemistry many efforts have been initiated into the wide spectrum of activities that aims to help teachers shift from teacher center pedagogy to learners centered pedagogy including many leaning activities to amalgamate in the classroom instructions.

Active learning process provide multiple opportunities and enough time for learner’s interactions by engaging them to construct positive understanding of concepts, gain knowledge, acquire skills and apply their competency. Active learning includes conceptual understanding, changing strategies, collaborative learning, co-operative learning, group work, technology enhanced inquiry based, problem based, case study based discovery learning, peer instructions  and experiential learning activity.  Different engaging teaching techniques have been used in Chemistry classroom.  The conceptual visualization has an optimistic effect on Chemistry learning outcomes and concept mapping is effective and efficient in gaining knowledge, acquiring concept and to apply competency. The concept mapping is more effective in enhancing academic achievement than conventional teaching methodology.  The highly directed concept mapping techniques produce much better result in learner’s academic performance then poor concept mapping.

Students construct Chemical concepts at their own paces based on their daily experiences.  Therefore, learners’ are provided with an opportunity and enough time to develop sound understanding of Chemical concepts during class-room instructions. The best teaching practice is to give students a particular task at both individual and group level at with a given time frame work.  Self-determined time produces better academic achievement result at practical Chemistry than the other teaching methodologies such as lectures demonstration etc. The most commonly used teaching methodologies are role play, project, quiz, oral questions, field visit, debate, problem solving, individual work, investigation assignments, practical work, test, presentation and discussion.

 

Table 1: Selected everyday life correlated Chemical Concepts

Sl .No

Concepts

Everyday life Connection

Pictures

1

Density

HDL and LDL -  good and bad cholesterol

Description: Cholesterol: The Good, The Bad & The Ugly - Murray County Medical ...

 

2.

Second law of thermodynamics

Why is it easy to stay messy while hard to keep neat

Description: Got Ice? - Lessons - Tes Teach

 

3

Colligative Properties

Why does salt melt ice?

Description: Why Does Salt Melt Ice? | Angie's List

 

4

Intermolecular forces

Why is oil liquid and butter solid at room temperature?

Description: Can human fat become a liquid? - Quora

 

5

Geometric Isomerism

Formation of trans fat in cooking oil

Description: What changes if dissolve Oleic Acid in water and then modifying ...

 

6

Stereoisomerism

What is the difference between Prilosec and Nexium?

Description: Related image

 

7

Micelles

How does soap clean?

Description: Micelle

 

8

Micelles

What is the role of bile salts during fat digestion?

Description: The Importance Of Bile In Digestion

 

9

Precipitate

What is soap scum?

Description: C:\Users\Thote Sir\Desktop\Soap-SEPT-17-2018.1).jpg

 

10

Precipitate

What is hard water?

Description: Related image

 

11

Oxidation reaction

Why is the statue of Liberty blue?

Tripadvisor | Statue of Liberty Circle Line Express Cruise ...

 

12

Oxidation reaction

How does rust work?

Description: Related image

 

13

 

Catalytic hydrogenation

 

 

Manufacturing of Margarine

 

 

Description: Related image

 

14

Base catalyzed hydrolysis

How is soap made?

Description: Related image

 

15

Acid catalyzed hydrolysis

How do drug-sniffing dogs detect illegal drugs?

Description: Related image

 

16

Nucleophilic addition-elimination

How does penicillin work?

Description: Related image

 

17

Nucleophilic addition-elimination

How is aspirin made?

Description: Related image

 

18

Nucleophilic addition-elimination

How is nylon 6-6 made?

Description: https://5.imimg.com/data5/HW/GF/GLADMIN-21386586/nylon-66-yarns-250x250.png

 

19

Chromic acid oxidation

How do breathalyzers work?

Description: Man's Medical Condition Allegedly Affects Breathalyzer Reading

 

20

Polymerization of alkenes

How is plastic made?

Description: plastic-bottles * A6 Mouldings

 

21

Polymerization of alkenes

How is PCV made?

Description: PCV Valve Delete Kit for Nissan Z32 300zx FREE DELIVERY - RGS ...

 

22

Polymerization of alkenes

How is Teflon made?

Description: Should You Avoid Aluminum and Teflon Cookware? | HowStuffWorks

 

23

Hydrophobic effect

Why do small oil drops in water tend to aggregate together into larger ones?

Description: Related image

 

24

Oligosaccharides and antigen-antibody complex

What role do blood types play in blood transfusion?

 

 

Description: https://i.pinimg.com/originals/c4/2f/98/c42f98c7931a63f3d8d1bab2e538aeac.jpg

 

25

Structure of lipids

Health benefits of Omega-3 fish oil

Peru Balsam Essential Oil Uses, Benefits and Warnings - EverPhi

 

26

Lipid membrane fluidity and temperature

Why deep ocean fish contain more unsaturated fatty acids?

Deep sea fish - Alchetron, The Free Social Encyclopedia

 

27

Semi- permeable membrane, osmosis and  diffusion

How does a kidney dialysis machine work?

 

Biology Notes for IGCSE 2014: # 100 Dialysis and its application ...

 

29

Contrast between steroid and peptide hormones

Why do the risks of hormones therapy outweigh the benefits for most women?

Here's what you should know about hormone therapy for menopause ...

 

30

Isoelectric point

How is cheese made?

The surprising role cheese played in human evolution

 

31

Protein primary structure

How do meat tenderizers work?

Protein quaternary structure Protein structure Hemoglobin Protein ...

 

32

Protein primary structure

How different is human insulin from porcine insulin?

Protein quaternary structure Protein structure Hemoglobin Protein ...

 

33

Protein tertiary structure- disulfide bond

What is involved in a “hair permanent”?

Globular Protein - an overview | ScienceDirect Topics

 

34

Fibrous and globular proteins

Why is hair water insoluble while egg white soluble?

Related image

 

35

Protein Denaturation

Why is raw egg white water soluble while cooked egg white insoluble?

Protein denaturation. | Download Scientific Diagram

 

36

Protein Denaturation

Why does alcohol sterilize things?

Formaldehyde and Acetaldehyde Accumulation in Hand Sanitizers ...

 

37

Protein Denaturation

Why must we wear goggles in the lab?

Education Innovation - Children's Safety Goggles - Buy Online in ...

 

38

Hemoglobin and Iron

Why is venous blood dark red while arterial blood bright red?

Module 4: Magnetic Resonance Angiography

 

39

Myoglobin

Why is beef red while fish white?

Lake Whitefish - Flathead Lakers

 

40

Glycoproteins

Why do we need to do “Type and cross match” test before a blood transfusion?

Blood Cross (X) match Test | copatibility testing for Transfusion ...

 

41

Antigens and antibodies

Why do we need to do “Type and cross match” test before a blood transfusion?

Antigen-Antibody Reactions

 

42

Enzyme specificity

How is it possible that humans cannot digest grass while cows can?

FREE Toxicology Course on Chemical Reactions, Catalyst, Enzymes

 

43

Enzyme specificity

What causes lactose intolerance?

Description: https://www.medlife.com/web/wp-content/uploads/2018/11/lactose-intolerance.jpg

 

44

Enzyme binding model

Why is Nexium more effective than Prilosec?

Allosteric regulation - Wikipedia

 

45

Competitive inhibition

How do sulfonamides fight bacterial infection?

Enzyme. synthesis stock vector. Illustration of metabolic - 89995773

 

46

Substrate analogues

How do sulfonamides fight bacterial infection?

3NX2: Enterobacter Sp. Px6-4 Ferulic Acid Decarboxylase In Complex ...

 

47

Noncompetitive inhibition

Why are heavy metals a Hazard to your health?

Antibiotics | Free Full-Text | Bacterial Responses and Genome ...

 

48

Irreversible inhibition

How does aspirin work?

MCAT Bio Lecture 1 (Enzyme Inhibition) Flashcards | Quizlet

 

49

Bacteriostatic antibiotics

How do sulfonamides fight bacterial infection?

Tetracycline Antibiotics Oxytetracycline Bacteriostatic Agent ...

 

50

Bactericidal antibiotics

How does penicillin fight bacterial infection?

Eubacteria - Vast Kingdoms

 

51

Metabolism – oxidative decarboxylation

How does thiamine (Vitamin B1) work?

Vitamin B complex | chemical compounds | Britannica

 

52

Metabolism-citric acid cycle (COA)

How does panthothenate (Vitamin B5) work?

Cannabidiol | C21H30O2 - PubChem

 

53

Metabolism-citric acid cycle (FAD/FADH2)

How does riboflavin (Vitamin B2) work?

Description: http://www.thedoctorspatail.com/wp-content/uploads/2017/02/vitamins.jpg

 

54

Metabolism-citric acid cycle (NAD/NADH)

How does niacin (Vitamin B3)   work?

Vitamin B3 (Niacin) - Creative Diagnostics

 

55

Metabolism- gluconeogenesis

How do biotin supplements work?

Vitamin H (biotin) 98%, CasNo.58-85-5 EXCELLENT HEALTH PRODUCTS CO ...

 

56

Fate of Pyruvate-lactate fermentation

Why do muscles get sore after vigorous exercise?

World of Biochemistry (blog about biochemistry): Fates of pyruvate

 

57

Fate of Pyruvate- ethanol fermentation

How is liquor made?

File:Ethanol Fermentation english.png - Wikimedia Commons

 

58

Recombinant DNA

How is real human insulin made?

Presentation Name

 

59

DNA replication

Why kids look like their parents?

106 Pics That Prove Kids Are Copy-Paste Versions Of Their Parents ...

 

60

Western blotting

How is HIV detected?

What is Western blotting/Western blot imaging?

 

61

PCR

How is HIV detected?

Description: HIV Test Types & Accuracy of Results of HIV Testing Kits

 

62

Gene mutation and chemical mutagens

Why is roast meat bad to your health?

Mutation – Grade 9 Understanding for IGCSE Biology 3.34 3.37B ...

 

63

Gene mutation and radiation mutagens

Does suntan cause cancer?

How does sunshine make you tan? | Ease Into Science

 

 

 

Figure 1: Chemistry in Everyday Life

Description: Related image

Description: Soap and detergent | chemical compound | Britannica

Description: What is the chemical name of laundry detergent? - Quora

Description: What is the difference between the chemical composition of soaps ...

Description: Notes On Soaps and Detergents - CBSE Class 10 Science

Description: Should I stop using antibacterial handwash and gels? | Hygiene ...

Description: How to Make Zero Waste Liquid Dish Soap With Non-Toxic Ingredients ...

Description: Kareena's Chemistry - Extract Iron from your Cereal Experiment ...

Description: The Chemistry of Coffee, Hawthorne, Brisbane

Description: No photo description available.

Description: No photo description available.

Description: Image may contain: food

Description: Image may contain: food

Description: Image may contain: plant and food

Description: Juice Start Your Day - Amla Juice - Kapiva

Description: https://static.toiimg.com/thumb/70070008.cms?width=600&resizemode=4

Description: beta-Carotene and Cancer - Cancer Therapy Advisor

Description: Related image

Description: C:\Users\Thote Sir\Desktop\Chemical-structure-and-various-source-of-lycopene.png

Description: Related image

Description: C:\Users\Thote Sir\Desktop\chlorophyll-formula-i.jpg

Description: The Ultimate Coffee Buying Guide For Die-Hards

Description: Related image

Description: How our coffee works - Sabie Valley Coffee

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Description: Why do onions make us cry ?. Have you ever wonder why you starts ...

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Description: https://asm.org/getmedia/0c4136a5-6a30-4063-a95b-0beb4882338e/MicrobialMyths1-7-20-19?width=500&height=373&ext=.png

Description: Related image

Description: Related image

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Description: Pineapple flavor - Flavor Scientist

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Description: https://www.scielo.br/img/revistas/cta/2020nahead/0101-2061-cta-fst26019-gf04.jpg

Description: Seven Side Effects of Soda – MPBStrong

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Description: C:\Users\Thote Sir\Desktop\Soap-SEPT-17-2018.1).jpg

Description: HIV Test Types & Accuracy of Results of HIV Testing Kits

2.      METHODS

 

2.1. SIGNIFICANCE OF THE STUDY

 

The introduction of alignment of concept of Chemistry to everyday life is improving learning and the academic achievements of the students.  This will foster more joyful learning experience and arose the interest in the subject by intrinsic motivation. 

The imperial evidences to support the present classroom strategies in Chemistry at intermediate level is not known, without knowing the imperial evidence it is unlikely to convince teachers to use the present classroom instruction method for teaching and learning Chemistry and other core subject of school education at intermediate level.    

 

2.2. OBJECTIVES

 

The present study aims to study the outcome of present teaching learning strategies on academic achievement score of study group and control group.

 

2.3. HYPOTHESIS

 

There is no noteworthy mean score difference between the academic achievement score of study group and control group after treatment.

 

2.4. RESEARCH DESIGN

 

      The (quasi) experimental research design is applied.  The systematic description of design is represented in Fig 2.

 

2.5. SAMPLE

 

      The sample consists of total 50 students of grade 12 studying Chemistry as elective subject.  Sample age is from 17-19 years. On the basis of the test conducted before the treatment, the samples are subdivided into two groups (study and control group) – 25 students in each.  Both group consists of 25 students.

 

2.6. TOOL

 

      As there is no standard tool available to measure the academic achievement after treatment, test is designed. According to RBT (Revised Bloom’s Taxonomy) the content of the instrument is validated by the subject experts.

 

3.      RESULT AND DISCUSSIONS

 

Table 1: Independent sample t-test before treatment of student’s achievement:

Variables

N

Mean

df

t-value

P

Study Group

25

14.23

58

0.177

849

Control Group

25

14.02

 

Table 2: Independent sample t-test after treatment of student’s achievement:

Variables

N

Mean

df

t-value

P

Study Group

25

18.52

58

12.68

.000

Control Group

25

16.29

 

 

Table 3: Paired Sample test for test before and after treatment

Pair 1

Before and after treatment of test

Mean difference

SD

T

Significance

(2 trailer)

 

 

-4.2000

1.45

12.442

.000

 

The independent t-test sample is applied to calculate the mean score difference between he achievement score of study group and the control group on test before treatment.

Table 1 shows that there is no noteworthy difference between two groups (p= 849). It shows that both groups are on equal level of achievement before interventions.

A paired t-test sample is conducted to compare the effect of treatment on academic performance of the study group.  Table 2 reveals that there is a noteworthy difference in the academic performance of test before the treatment (M= 18.52, SD= 4.261) and after treatment (M= 16.29, SD= 3.460) t (50) = 12.442, p=0.000).

 

4.      DISCUSSION

 

The present study is conducted to reveal the effect of correlation of Chemistry with everyday life to gain sound results. Learners are subdivided into two groups (study group and control group).  Study group is taught the subject on the center of correlation of the subject with day to day life and control group is taught by using conventional method.  Result of the study indicates that the present study indicates that the present strategy of class room instructions have positive impact on students’ academic performance.  Result of the present study is in constant with previous study Chunuu and J. Foss (2010).

The present classroom strategy proves to promote learning. Learners in the classroom express their satisfaction with the teaching methodology.  Students express their satisfaction as students succeed in Chemistry subject with high grades not only making subject easy but also stay in tune with students. The classroom instructions are understandable to more difficult content like electrochemistry, chemical equilibrium and solid states.

In order to compare the students score with knowledge and competency, the mediocre score of the students are taken and the result reveals that the student’s average scores have increased by 18% and exceeded the intended benchmark.  The merit of incorporating answers into classroom instructions is advisable that analogy may also cause confusion by itself in two aspects:

·         Students are not familiar with analogy of class room instructions

·         Students have different understanding of point of instruction which they wish to convey.  Hence having proper metaphors and repetitive specifying the differences and similarities between the concepts and analogy is essential.

 

5.      CONCLUSION

 

·         Innovative class-room instructions practices improve both learners and teachers.  By involving in innovative practices, students need not be categorized. Students prefer learning by doing (experiential learning).

·         Innovative classroom instructions are promising because it supports teachers to involve students with learning.

·         Innovative practices are prominence in Science education, curriculum, teaching-learning and value additions.

·         Present emphasis is on adopting subject knowledge and skills to everyday life.  Hence Science teachers must concentrate on this to connect the subject with daily life to have firsthand knowledge of the subject.

·         When teachers and learners fully embrace innovative process in classroom, students’ academic achievement enhances greatly in Science subject.

 

6.      SUGGESTION FOR IMPROVEMENT

 

·         Teachers should design, fabricate, innovate various teaching methodology for class room instructions to enhance students active participation in lesson to enhance academic performance.

·         In service teacher training should be organized for continuous improvement in class-room instructions and overall quality of education.

·         Teachers should visit other schools that utilize innovative classroom practices, observe new methods and material in action.

·         Science teachers should be motivated to become more cosmopolitan in applying classroom teaching techniques.

 

SOURCES OF FUNDING

 

This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.

 

CONFLICT OF INTEREST

 

The author have declared that no competing interests exist.

 

ACKNOWLEDGMENT

 

None.

 

REFERENCES

 

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     [2]        Amanso, E. O.I., & Bassey, B.A. (2017), Assessment of Selected Science Process Skills Acquisition among Senior Secondary Schools Students in Calabar Education Zone of Cross River State, Nigeria. International Journal of Scientific Research in Education, 10(1), 119-126

     [3]        Ayas, A., Cepni, S., Akdeniz, A., Ozmen, H., Yigit, N., & Ayvaci, H.S. (2007), Science and Technology Teaching from Theory to Application (6th Ed.). Ankara; Pegem A Publishing.

     [4]        Terniz, B.K., Assessing Science Process Skills in Physics Teaching (Ph.D. Thesis). Gazi University, Institute of Education Science, Ankara, Turkey.

     [5]        Prashant Thote, Experiential Learning: Inclusive Art Education for Joyful Learning, Review of Research, Vol 8, Issue- 09, June 2019.

     [6]        Prashant Thote, Experiential Learning: Model for Teaching Science at Grade Nine, Research Magma, Vol-3, Issue -06, August – 2019.

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