Activity 2
Previewing activity
Have the children experiment with the cords to determine a prediction for the question
posed on the video: If two shapes have the same perimeter, can they have the same area?
Provide a focus for students
Have the students listen carefully and record solutions to the
problem/question posed.
Viewing Activities
Play the video, beginning at The Math Mimes.
Pause the video after the problem/question is stated, discuss interpretation and if they
match one another or not. Continue the video through The Math Mimes.
PostViewing Activities
In pairs, have the students further investigate the
relationship of area to perimeter. Have students determine strategies for distinguishing
area from perimeter. Share strategies through a whole class discussion.
Ask for volunteers to demonstrate their strategies on the board. Have the students record,
in their Math Learning Logs, their favorite strategies.
Prompt question for discussion: What are some uses, in the world, for these
measurements?

Activity 3
PreViewing Activities
Have students predict how to double the area of a rectangle and record their predictions.
Allow students a few minutes to discuss this with a partner. Have the students investigate
the problem/question using graph paper, pencils and/or scissors.
Provide a focus for students
Assign each table to record a concept, a rule,
and a formula demonstrated on the video, as they watch and listen.
Play the video beginning at segment General Mathpital.
Pause the video after the demonstration on the "operating table" and again after
the demonstration at the "xray screen." Check with students to be sure that
they are able to follow and record assigned information. Example:
 Determine measurements, 2 ft. wide x 5 ft. long.
 Formula for Area L x W.
 Double L and double W.
 Double one dimension, L or W, not both.
 Determine measurements,
4 x 5 = 20 or 2 x 10 = 20.
Post Viewing Activities
Have each table list a concept, rule, or formula on the board.
Discuss what was learned and how that matches the predictions and discoveries made
earlier. Record final information, concepts/rules/formula for area in Math Learning Logs.
Play end of video (from General Mathpital) to pose the final question/problem: When
we double the length and the width, the rectangles look the same. With twice the area, the
rectangles look very different. Can we double the area and keep the same shape?" Have
students work on this as homework and be prepared to share results.
