M2303-F13
Week 1.2
Activity: How Many Toothpicks?
Each group will be given some rubber bands, and Ziploc bags.
Each group member will be given a certain number of toothpicks
(unknown to you). You are responsible for your own toothpicks,
i.e. don’t mix your toothpicks with those of others.
Objective:
To determine the total number of toothpicks in your group.
Constraint:
No communication, whatsoever (verbal, written, gestures, etc.),
among group members once the game begins. You are not
allowed to peep at your group members’ toothpicks. You have to
pretend that each of you is working on your own isolated cave.
M2303-F13
Week 1.2
Activity: How Many Toothpicks?
Each group will be given some rubber bands, and Ziploc bags.
Each group member will be given a certain number of toothpicks
(unknown to you). You are responsible for your own toothpicks,
i.e. don’t mix your toothpicks with those of others.
Objective:
To determine the total number of toothpicks in your group.
Before the game begins, your group has 5 minutes to discuss
and agree on a strategy so that when all individual members’
toothpicks are put side-by-side, you can very quickly determine
the total number of toothpicks by looking and rearranging the
toothpicks, without having to perform any arithmetic
computations.
(Hint: Arrange your toothpicks so that others can visually see
how many toothpicks you have.)
M2303-F13
Week 1.2
Activity: How Many Toothpicks?
M2303-F13
Base-Ten Numbers
Week 1.2
M2303-F13
IMAP Video Clip #5
Week 1.2
Zenadia works on place value for 32, 120, and 316
http://media.pearsoncmg.com/cmg/pmmg_mml_shared/flash_video_player/playe
r.html?video=aw/IMAP/video/0207
1. Which answer would you be more pleased to hear if you
asked a child for the number of 1s in 316, 316 or 6?
2. How might you phrase a question to which 316 is
definitely the correct answer?
3. How might you phrase a question to which 6 is
definitely the correct answer?
4. If you teach primary grades, how might you help
children who do not see that there are 12 tens in 120
but who you think are ready to make sense of this idea?
M2303-F13
Base-Ten Numbers
Week 1.2
M2303-F13
Reading Assignment
Week 1.2
• Read Section 1.1 and understand these concepts (p. 4-10)
o Base-ten system
o Place value concepts
o Difficulty for English learners in saying counting numbers
like 11, 12, … 19
o Number paths vs. number lines
• Write notes using the “Retrieval Practice” method
• Review Section Summary for 1.1 (p. 10-11)
• Practice Exercises 1.1: #3, #4, #5 (p. 11)
M2303-F13
Week 1.2
Homework Set 1 (due Sep 4)
• Problems 1.1: #1 (p. 12) – Assigned on Mon
• Problems 1.1: #2, 3b, 8 (p. 12)
• Watch IMAP Video on “Maryann discusses how to write
192,000 in base-ten form” & Answer Questions