MATH FACILITATOR READING GROUPApril 2012

SOLVE

67,470 – 19

67,470 – 39

93,730 – 18

3,730 – 28

WITH A PARTNER

67,470 – 19

67,470 – 39

93,730 – 18

3,730 – 28

Write a generalization that can be proved using examples like these

REPRESENT WITH CUBES…!

67,470 – 19

67,470 – 39

93,730 – 18

3,730 – 28In subtraction, you

can…

4TH GRADERShttp://www.youtube.com/watch?v=h0BjtTDzbvE&feature=youtu.be

teacher records generalization on chart

Thoughts?

4TH GRADE GENERALIZATIONS In subtraction, you can add or subtract from

the subtrahend and do the same operation to the difference and get the correct difference.

In subtraction, you can add or subtract a number from the minuend and use the inverse operation on the difference to get the correct answer.

LISTEN TO THE WORDS As you watch the next 2 videos, listen

carefully to what the students say. What do you notice about the use of

vocabulary?

http://www.youtube.com/watch?v=UPSyvU0qMmI&feature=youtu.be

student explaining at board

ATTEND TO PRECISION IN COMMUNICATION What do you notice about the use of

vocabulary? Is it important to use terms such as

“subtrahend?” Does it impact mathematical understanding?

What was the teacher’s role in facilitating precise communication?

15 – 7 4th grade class #1

http://youtu.be/6HrspWGTUOs student working with cubes

Is the student representing our generalization?

SUBTRA - WHAT? Is it important to use terms such as

“subtrahend?” Does it impact mathematical understanding?

DISAGREEMENTS  Start at 2:21 2nd grade video (CCSS)

http://www.youtube.com/watch?v=3HJaRga5vLc&feature=youtu.be

Teacher tries to get students to disagree about vertex/edge

Sean’s http://www.youtube.com/watch?v=SFSs3dDJmAg

Start at 3:05

Start at 1:45

3+3+3+3+3 vs. 5+5+5+5+5

STRATEGIES THAT PROMOTE MATHEMATICAL DISAGREEMENTS Read “Issues that lead to disagreements” –

middle of p. 536 – middle of p. 537

EOG SEASON IS HERE! How do I know if my students are ready?

Buckle Down = Shut Down

GOALS Understand 2-3 strategies that promote

mathematical disagreements Create 1-2 tasks for teachers in my school to

use Monday

CONDITIONS ARE RIGHT FOR A DISAGREEMENTRead “Issues the Lead to Disagreements” pp.

536-5371. Center on a mathematical concept2. Are accessible to all3. Can be debated

MATHEMATICAL DISAGREEMENTS Read to the very top of page 534

Thoughts? Force students

to choose a

side

MATHEMATICAL DISAGREEMENTS

Think about a math topic students are struggling with in your school RIGHT NOW

With a partner Create a writing prompt that forces students to

choose a side.Conditions are Right

for a Disagreement

1.Center on a mathematical concept

2.Are accessible to all3.Can be debated

STRATEGIES THAT PROMOTE MATHEMATICAL DISAGREEMENTS Read from the top of

page 534 to the middle of p. 535

Thoughts?

Reveal student’s misconceptions

STRATEGIES THAT PROMOTE MATHEMATICAL DISAGREEMENTS

Thinking about that same mathematical struggle at your school…

With a partner Create a task designed to uncover student

misconceptions