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### Math Message 3.1

### Math Message 3.2

### Math Message 3.3

### Math Message 3.4

### Math Message 3.7 compass. What is the radius of the largest circle?

### Math Message 3.8 compass. What is the radius of the largest circle?

### Tessellations compass. What is the radius of the largest circle?

### Math Message 3.9 compass. What is the radius of the largest circle?

### Math Message 3.11 sheet of paper. Measure its angles. Find the sum of the angle measures.

Read about the U.S. Census on page 327 of the Student Reference Book.

Number your paper 1 – 9 and be ready for mental math!

What is the largest number in the table on page 329 of the SRB?

Number your paper 1 – 9 and be ready for mental math!

How might you prove that the measure of each angle of a square is 90 ? Be prepared to explain your answer. (Hint: What is the total number of degrees in a circle?)

Complete problems 1 and 2 at the top of journal page 70 without using your SRB.

Draw the largest and smallest circle you can with your compass. What is the radius of the largest circle?

Solve the following problems:

7 * 8 =

70 * 80 =

700 * 80 =

6 * 7 =

60 * 70 =

600 * 70 =

8 * 9 =

80 * 90 =

800 * 90 =

Math Message 3.5Complete page 77 in your journal. Do not use your compass. What is the radius of the largest circle?SRB.

Complete the following problems:

Round to the nearest whole number:

15.7

209.82

32.06

Round to the nearest tenth:

81.39

376.14

546.96

Math Message 3.6Solve the problems on J82.

Follow the directions on Math Masters, page 31.

Use estimation to answer the following questions:

Freida has $12.00. Does she have enough money to buy 7 pounds of apples at $1.49 per pound?

Jimmy reads about 47 pages an hour and reads 1 hour each day. Will he be able to finish a 283-page book in a week?

Mark wants to take his two best friends to lunch. He has $20.00. Does he have enough to buy three hamburgers at $2.49 each, three large drinks at $1.59 each and a three large orders of fries at $2.18 each?

= an arrangement of repeated, closed shapes that cover a surface so that no shapes overlap, and there are no gaps between shapes

some tesselations repeat only one basic shape; others combine two or more

In a tessellation, the basic shapes are translated (slid), rotated (turned), or reflected (flipped) to fill the surface.

In a regular polygon all the sides have the same measurement and all the angles have the same measurement

a tessellation consisting of regular polygons is called a regular tessellation

Use a straightedge to carefully draw a big triangle on a sheet of paper. Measure its angles. Find the sum of the angle measures.

Solve these problems:

70 [6s]

70 [60s]

70 [600s]

50 [9s]

50 [90s]

50 [900s]

80 [4s]

80 [40s]

80 [400s]

Use a straightedge to carefully draw a big triangle on a sheet of paper. Measure its angles. Find the sum of the angle measures.

Is 645 divisible … by 2?

by 3?

by 5?

by 9?

Is 852 divisible… by 2?

by 3?

by 4?

by 6?

Is 570 divisible by …by 2?

by 3?

by 5?

by 6?

by 9?

by 10?

Math Message 3.10Complete “Time to Reflect” on page 101.

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