1.13 Mental Math 3(1000s)+7(100s)=4(10s)+9(1s) 9 (10,000s)=8(1,000s)+5(100s)=4(10s)+3(1s)= 5(1,000,000s)=9(100,000s)+6(10,000s)+3(1,000s)+7( 100s)+3(10s)+9(1s)=

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Presentation transcript:

1.13 Mental Math 3(1000s)+7(100s)=4(10s)+9(1s) 9 (10,000s)=8(1,000s)+5(100s)=4(10s)+3(1s)= 5(1,000,000s)=9(100,000s)+6(10,000s)+3(1,000s)+7( 100s)+3(10s)+9(1s)=

Math message Math journal page 32 Find the perimeter of the square shown at the top of journal page 32.Convert your answer to inches Remember perimeter is the length of a boundary of a closed shape. Trace around the edges of the square on page 32. How did you find the perimeter? How did you convert the answer to inches?

Objective: you will identify a rule or formal for finding the perimeter of a rectangle Look at the rectangle on Problem 1 on journal page 32. Point to longer side and identify that inside as length. The side that runs perpendicular to the length is the width. What is the length of the rectangle? Width? Perimeter? How can you generate a rule that can be used to find the perimeter of any rectangle?

Review Math antics Perimeter Perimeter rap

Make a poster that demonstrates how to find the perimeter of an object You will be finding several objects in the class to measure and find the perimeter of. First, name the protocols you will be using in class to “move around the class”. Next, using a ruler or straight edge, draw the object and solve the problem(perimeter) Make sure your paper is neat and the answer is CORRECT.