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| ==Concept #2.Informal units of measurements == | | ==Concept #2.Informal units of measurements == |
| ===Learning objectives=== | | ===Learning objectives=== |
| + | # The students understand that informal ways of measurements are a type of measure which uses non-standard units such as hand spans, armlengths, footsteps or pattern blocks to measure length, area, etc. |
| + | # They comprehend that estimate and informal measurement are interchangeable terms. |
| + | # They realise that informal measurements are not always the same but vary with the person involved in measuring. |
| ===Notes for teachers=== | | ===Notes for teachers=== |
− | ===Activity No # === | + | # The teacher can ask the students to gather information regarding earlier informal measuring ways from their elders and have an initial discussion in the classroom. |
| + | ===Activity No # Estimating distances=== |
| {| style="height:10px; float:right; align:center;" | | {| style="height:10px; float:right; align:center;" |
| |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;"> | | |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;"> |
| ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> | | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> |
| |} | | |} |
− | *Estimated Time | + | *Estimated Time :1 hour |
− | *Materials/ Resources needed | + | *Materials/ Resources needed : Sticks, |
| *Prerequisites/Instructions, if any | | *Prerequisites/Instructions, if any |
− | *Multimedia resources | + | # The students should know ways of informal measurements. |
| + | # They should have ability to measure and document their findings accurately. |
| + | *Multimedia resources |
| *Website interactives/ links/ / Geogebra Applets | | *Website interactives/ links/ / Geogebra Applets |
− | *Process/ Developmental Questions | + | *Process: |
| + | # The teacher can ask the students to determine the distances of library, principal's room, playground, dining hall, entrance gate from their classroom using various informal measuring methods. |
| + | # The children can decide which method to use - whether foot, sticks or ropes. |
| + | # The task can be done in groups of 5 children. |
| + | # Document and compare the results. |
| + | # Discuss regarding the length of distance. |
| + | *Developmental Questions: |
| + | # Which point would we mark as the point of reference for measuring our classroom. |
| + | # Similarly what are the points of reference for other places. |
| + | # How do we mark them. |
| + | # Which measuring unit are you using ? |
| + | # How will you document the findings ? |
| + | # How can we tabulate our findings on board for comparisons ? |
| + | # What would be our report back time ? |
| + | # What are our findings ? |
| + | # What conclusions can we draw ? |
| *Evaluation: | | *Evaluation: |
| # What have we learnt so far about measuring object? | | # What have we learnt so far about measuring object? |
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| # How can we measure curves? | | # How can we measure curves? |
| # What are the problems with informal measuring units? | | # What are the problems with informal measuring units? |
− | # Discuss the value in using a set form of measurement, such as a metre.
| + | |
| | | |
| ===Activity No # === | | ===Activity No # === |