Review Day - Peck

Review Day

We are going to take the day to review and then complete a Quizizz assignment about what we have learned so far in unit 1.

Grade Breakdown

• 3 Mastery Grades (70%): CFA #2, Exit-Slip/Cool-Down, Scaled Copies Quiz

• 4 Progression Grades (20%): Homeworks like... Unit 1 Pre-Assessment, Unit 1 Lesson 1, Unit 1 Lesson 2, & Unit 1 Lessons 1-7

• 4 Engagement Grades (10%): Participation/Non-Math Specific like... participation in class presentations/questions and the Virtual Locker Assignment

What Can I Do?

• Complete All Missing Assignments to Avoid Zeros

• Improve Mastery Grades

• Do Self-Paced Lessons for Participation Points

• Make Sure to Notify Me

• I am here for help after all assignments have been completed. I can clarify and help.

Let us start...

we will review what we have learned so far, make sure to put questions in the chat.

Open Ended

Name a way we can connect what we have learned so far in Unit 1 to the real world.

Real-World Examples

• Blueprint for a House

• Virtual Models

• Real-Life Models

• Map-Scale

• Comparing Sizes of Things (like in the lesson yesterday)

• Model Car

Student Examples Displayed in a Magazine Last Year

What have we discussed?

• Scale Copies - what about them

• Corresponding Parts - what kind

• Scale Factor - you do what with it

• Scale Drawings - examples we saw

• Scale - what does it tell you

Scale Copies & Corresponding Parts

We should know these by now, but here is an example if you need a refresher.

A scaled copy is a copy of an figure where every length in the original figure is multiplied by the same number aka the scale factor.

Name a set of corresponding parts in the chat.

Scale Factor

Scale Factor is the number which all sides in the original figure are multiplied to get to the scale copy.

What is our scale factor in this figure if we say the smaller triangle is our original figure (First we need to know which sides correspond). Answer in the chat.

Multiple Choice

What if we instead said the bigger triangle is our original figure, what is our scale factor now? *Hint* It is the RECIPROCAL

• 1/4

• 1/3

• 4

• 3

What are the other side lengths?

• Now that we know the scale factor, we can figure out the other side lengths.

• Scale Factor = 4

• 5 x 4 = ?

• 20

• 4 x 4 = 16

• So my side lengths in my bigger triangle are 12, 16, and 20

Open Ended

Choose one of the set of figures and describe what "Scale Factor Rule" it must follow.

Scale Drawing Definition

A scale drawing is a scaled representation of an object.

For example, the scale drawing on the left is a scaled respresentation of what real life object?

Open Ended

Describe what the scale means in this picture. Make sure to be as specific as possible.

Quizizz Time

Any questions before you get some practice? The link is posted in the chat and you can ask me questions at any point. You do need to stay on the Meeting until it is complete.