Skills #1-4 Review and Extra Practice Sheets

Click here to access the Skills #1-4 Review Worksheet

Here are the answers:

1) 89 is median and mean is 88

2) 9

3) 13

4) 2 & 8/15

5) 2

6) 25%

7) 25 & 6/7

8) 9/81, 2/14, 1/6, 3/7, 5/6, 7/8

9) 92

10) 45

Bonus: radius = 6

MORE PRACTICE NEEDED?

Here is a link to scanned practice sheets with answers.  

The practice sheets cover the following skills:

• order of operations
• division of fractions
• order of operations with fractions
• percent of a number problems
• decimal division

Investigation 2.3

Investigation 2.3 - Tessellation Link- 

Click here to access

Or 

Click here- Pattern Blocks

Investigation 2.2 - any polygon angle sum

Focus Question: What is the angle sum of any polygon with n sides?

Helpful site:
Math is Fun - Polygon angles

Application problem of understanding triangle angles.

Investigation 2.1 - Regular Polygons angle and angle sum formulas

The focus question is: What is the size of each angle and the sum of all angles in a regular polygon with n sides?

The students will review what is important in a polygon and how regular and irregular polygons compare.  The goal is for students to develop formulas the sum of interior angles for a polygon of n sides.


S - Sum of all angles
S = 180 (n - 2)  
when n = any number of sides of a polygon


A - measure of one angle
A = 180 (n - 2)/ n
OR  
A = 180 - 360/n   
when n = any number of sides of a polygon

Link to Geometry and Regular Polygon Site

Click here to access

Check - up #1 - Need to Know

Investigation Focus Questions:

Problem 1.1

1. What properties do all polygons share?

2. What properties do some sub-groups of polygons share?

Problem 1.2

1. What are some common benchmark angles?

2. What part of a full turn is each angle equal to?

Problem 1.3

1. When a drawing shows two rays with a common endpoint how many rotation angles are there?

2. How would you estimate the measure of each angle?

Problem 1.4

1. How do you measure and angle with an angle ruler and a protractor?

Problem 1.5

1. In a triangle, what measures of sides and angles give just enough information to draw a figure that is uniquely determined?


Need to Know:
1. Finding angle measurements using a protractor.
2. Properties of shapes
3. Drawing angles and polygons given specific measurements
4. Investigation Vocabulary: polygon, regular polygon, rotation. supplementary and complementary angles, obtuse and acute angles, straight angles, reflex angles, right angles
5. Correctly naming and labeling an angle

Skills #3

Attached here is Skills #3 and also the notes on questions students had on Skills #3 from class.

Skills #3 Worksheet

Skills #3 Notes for Questions.

Investigation 1.5 - Drawing Challenge

Focus Question: In a triangle, what measures of side length and angles give enough information to draw a figure?

We completed Investigation 1.5 together in class and the students need to complete B #2-6 for homework.

Notes from class- click here to access

(These notes cover the Investigation Questions A and B from class.)