Problem Solving Block 1.The perimeter of the figure below is 32. What is the length of side A. 2. Santa’s workshop is 18 feet long and 20 feet wide.

Problem Solving Block

1. The perimeter of the figure below is 32. What is the length of side A.

2. Santa’s workshop is 18 feet long and 20 feet wide. The reindeer barn is half the length and half the width of the workshop. What is the total area of the workshop and barn?

7

Warm Up

4

8

2

8

A

B

3. The elves need 370 bows for all of Santa’s presents. If the bows come in packages of 8, how many packages to the elves need to buy?

4. Santa has 576 Elves that work for him in the North Pole. Each day each Elve drinks 8 cups of Hot Coco. What is the total amount of cups of Hot Coco that the Elves drink?

Bonus: How many gallons of Hot Coco is that? (1 gallon= 16 Cups)

7

Santa wrote down the number of good 4th grade students at Granger Elementary. Then he divided the number by 2 and subtracted 12 from the quotient. What was the number of good 4th grade students?

124 Students!!!

At Movie Mania, a ticket for a movie costs $8. Each day the movie is

shown 4 times: 11:00 AM, 1:15 PM, 3:30 PM and 7:00 PM. On

Wednesday, 75 people attended the 7:00 PM show. On Thursday, 93

people attended the 7:00 PM show. On Friday, 175 people attended the

7:00 PM show. On Saturday, between 50 and 90 people attended

each show.

• Write and solve a number sentence to find how much money was collected for the 7:00 PM show on Thursday.

Ten Minute Math Closest Estimate- 1

You will have 30 seconds to decide which estimate you think is the closest. Send your answer in on your CPS remote.

•How did you break the number apart?•How did you determine the magnitude of the answer?•If you change the numbers in the problem, how did you change then and why?

Ten Minute Math Closest Estimate- 2

You will have 30 seconds to decide which estimate you think is the closest. Send your answer in on your CPS remote.

•How did you break the number apart?•How did you determine the magnitude of the answer?•If you change the numbers in the problem, how did you change then and why?

A RAY is part of a line that has ONE endpoint and goes on FOREVER in one direction (ex. Ray from the Sun).

When two rays share the same endpoint, they create an angle.

A SQUARE corner is a right angle.

Angles that are LESS than a right angle are ACUTE angles.

Angles that are GREATER than a right angle are OBTUSE angles.

How can we identify and describe right, acute and obtuse angles?

Kinds of Angles

Show 14-2 video on www.pearsonsuccess.net

Review Geometric Terms

How can we identify and describe right, acute and obtuse angles?

Line Segment- a part of a line with two endpoints

Ray- a part of a line that has one endpoint and continues on forever in one direction

Straight angle- forms a straight line

Right angle- SQUARE corner

Obtuse angle- GREATER than a right angle

Acute angle- LESS than a right angle

??

?

? ??

Right Triangles

Take a look at shape 1 and 3. How are these shapes the same? How are they different?

Both shapes are triangles, but they have different ANGLES.

Shape 1 has a RIGHT ANGLE. A triangle with a RIGHT ANGLE is called a RIGHT TRIANGLE.

Guided Practice

Pass out dotted paper….

You have 60 seconds to draw examples of a right angle, obtuse angle and acute angle.

Exchange drawings with your partner. You have 60 seconds to label your partner’s drawings.

Then check your work together.

Complete p. 304 questions 1-7 together.

How can we identify and describe right, acute and obtuse angles?

Independent Practice

Complete p. 304-305 questions 8-22

Add the following words, definitions and sketches to your Glossary:

How can we identify and describe right, acute and obtuse angles?

Line Segment- a part of a line with two endpoints

Ray- a part of a line that has one endpoint and continues on forever in one direction

Straight angle- forms a straight line

Right angle- SQUARE corner

Obtuse angle- GREATER than a right angle

Acute angle- LESS than a right angle

Alternative Independent Work

To Follow