WARM UP

1. Define in your own words the words mean/average.

2. Define in your own words what median means

TURN IN YOUR HOMEWORK AND SIGNED CLASS EXPECTATIONS• Make sure your name is on both sheets

OBJECTIVE

Students can interpret the meaning of a dot plot and histogram graphLanguage objective-students can explain the what shape, center and range mean.

MATH1UNIT 2 INVESTIGATION 1

GROUP WORK VS. COLLABORATION

Group work

1 person answers the rest copyNo one discusses, everyone just works by themselvesStudents are together but not a team

• CollaborationEveryone is working together Everyone is on the same problem at the same timeDiscussion is happeningIf a question arises the student with the question asks the group first before they come to meEveryone is helping everyone complete the task

STRUCTURED COLLABORATION

Rally Round RobinEach person will have a turn to answer a given question or problemThe activity can be timed or untimedEach person will have a chance to answer the same question or a different question, and if they need help they can ask their elbow partner for a tip (NOT THE ANSWER) we are all responsible for our learning and giving the answer to a student does not help them to learnOnce everyone has answered you can either go around again, or if it is timed I will have a timer and know when we have all participatedTHE KEY to a structured activity is that everyone participates at least once in the rotation.

COLLABORATION

Getting into groups should take less than 30 seconds So lets practice…

LET’S GET TO KNOW OUR TEAMMATESEach person will have 45 seconds to answer the following questions

1.What did you do all summer2.What was your favorite part of the summer

(besides sleep) 3.What are you most looking forward to for

the year? (aside from graduating) 4.Do you own any pets? What are they?

COLLABORATION IN INVESTIGATIONS

• Recall that when we are investigating a topic we are collaborating• One person will read the paragraph the rest of the group will follow

along• Everyone is working on the same problem at the same time• We are all writing down the answers • At the end of the investigation today, I will collect at random 1 paper

and score the whole group based on that one paper, so everyone needs to be on task and completing the work

TEAM INVESTIGATION 1Get into your teams and turn to page 76. Read starting at investigation 1. Use the note guide to answer the questions in the book. Your team will be responsible for defining the following words.Range Skewed to the rightShape Skewed to the leftDot PlotHistogram

TEAM DEFINITIONS (CHECKPOINT 1)

Range-the difference between the maximum and the minimum number

Shape- the outline of the total graph

Skewed left- when the tail of the distribution stretches to the smaller values or to the left Skewed Right – When the tail of the distribution stretches to the right or the larger values

TEAM DEFINITIONS (CHECKPOINT 2)

Dot Plot

Histogram

Frequency

CALCULATIONS

• How to calculate Range

• How to calculate Mean of a distribution

HOMEWORK

• Page 83. Check Your Understanding (CYU) part a, b (only the histogram, and part c.