Changes
From Karnataka Open Educational Resources
588 bytes added
, 08:47, 2 December 2014
Line 91: |
Line 91: |
| # When you say shape, what do you mean ? | | # When you say shape, what do you mean ? |
| | | |
− | ===Activity No # 2. === | + | ===Activity No # 2. Geogebra animation to explain PI === |
| {| 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;"> |
Line 101: |
Line 101: |
| *Multimedia resources | | *Multimedia resources |
| *Website interactives/ links/ / Geogebra Applets | | *Website interactives/ links/ / Geogebra Applets |
| + | #[http://geogebratube.org/material/show/id/144079 Geogebra file] for explaining how 'circumference / diameter' is a constant, denoted as pi (Greek letter), using a number line |
| + | #An animation of the same concept. |
| + | [[File:Pi 121.gif|400px]] |
| + | |
| *Process/ Developmental Questions | | *Process/ Developmental Questions |
| + | Open the Geogebra file. Move the slider to 'unravel' the circumference' over the number line. Since the diameter is 1 unit (measuring from -0.5 to 0.5 on number line), the circumference ends at 3.14, showing the ratio between circumference |
| *Evaluation | | *Evaluation |
| + | |
| *Question Corner | | *Question Corner |
| + | #if the diameter is increased from 1 to 2, what will the circumference be? |
| | | |
| ===Activity No # 3. Circle of varying radius using Geogebra === | | ===Activity No # 3. Circle of varying radius using Geogebra === |