Module 9 â Reorganized - eusddata
Module 9 â Reorganized - eusddata
Module 9 â Reorganized - eusddata
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Harcourt Math−Grade 5 MODULE 9<br />
DAY: 6<br />
Unit 6: Operations with Fractions<br />
<strong>Module</strong> 7: Chapter 21: Multiply Fractions<br />
LESSON 21.4, Pp. 386-387<br />
MATERIALS:<br />
LESSON<br />
FOCUS:<br />
CALIFORNIA<br />
STANDARDS:<br />
PURPOSE OF<br />
LESSON:<br />
LAUNCH:<br />
Introduce<br />
students to<br />
concepts.<br />
Multiplying Mixed Numbers<br />
Number Sense 2.4 Understand the concept of multiplication and division<br />
of fractions;<br />
2.5 Compute and perform simple multiplication and division fractions<br />
and apply these procedures to solving problems.<br />
Mixed numbers are renamed as improper fractions before multiplying;<br />
* OPTIONAL: use the GCF to simplify factors when mixed numbers are<br />
multiplied<br />
• Write the problem 1/2 × 1 2/3 on the board.<br />
• Ask students to work with a partner to solve it. Share solution/ strategies.<br />
(using squares, the distributive property and multiplying fractions by<br />
changing the mixed number to a fraction.)<br />
• Write the problem 2 1/4 × 1 2/3 on the board. Ask how this problem differs<br />
from the previous problem (two mixed numbers)<br />
EXPLORE:<br />
Work with the<br />
concept. Focus<br />
on students<br />
“doing”<br />
mathematics.<br />
PRACTICE:<br />
Focus on<br />
Communication<br />
and<br />
Representation.<br />
SUMMARIZE:<br />
Connect<br />
purpose to<br />
activities.<br />
Learn, P. 386: Plan Ahead. Read together.<br />
• Students work in pairs to solve it.<br />
• If students do not change both mixed numbers to fractions, ask them to try<br />
that strategy and see if it works.<br />
Teach, P. 386; Guided Instruction questions to guide discussion.<br />
Check, P. 386 #1-3. Do together and discuss.<br />
Check, P. 387 #4-8<br />
• Use the multiplying fractions method (Change both mixed numbers to<br />
fractions and multiply.).<br />
• If students have difficulty finding the GCF to factor multiplication problems,<br />
have students do Alternative Teaching Strategy, p. 386B.<br />
Practice & Problem Solving, P. 387 #25-32.<br />
• Work with partners. Discuss. Then do #18-20 and discuss.<br />
ASSESS, TE P. 387: DISCUSS.<br />
ASSESS, TE P. 387: Write. Give an example.<br />
OR<br />
Practice & Problem Solving, P. 387 #33.<br />
HOMEWORK: Practice & Problem Solving, P. 387 #19-21.<br />
ROUTINES:<br />
Mixed Review, P. 387<br />
Revised 3/05/04 24
Change language