Difference between revisions of "Fractions: Multiplication by a whole number"
From wikisori
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=== Materials === | === Materials === | ||
| − | <br> | + | *Red fraction circles in green frames (ten circles: 1 is undivided and the others are divided into 2 -10 equal parts. |
| + | *Label with fractions written on them: 1, 1/2, 1/2, 1/3 | ||
| + | *Pencil and paper | ||
| + | *Skittles<br> | ||
=== Preparation === | === Preparation === | ||
| Line 13: | Line 16: | ||
=== Presentation === | === Presentation === | ||
| − | #Have the child bring over the two trays of fractions. | + | #Have the child bring over the two trays of fractions. |
| − | #Write a multiplication equation on the paper: 2/8 x 3 = | + | #Write a multiplication equation on the paper: 2/8 x 3 = |
#Directress tells the child, “We will take 2/8 four times”. | #Directress tells the child, “We will take 2/8 four times”. | ||
#Take 2/10 one time, two times, three times and four times. | #Take 2/10 one time, two times, three times and four times. | ||
#Push them all together and have the child count the total number of 10ths. (8) | #Push them all together and have the child count the total number of 10ths. (8) | ||
| − | #Show the child how to write the answer. | + | #Show the child how to write the answer. |
#Do a few with the child and then have the child do some by himself. <br> | #Do a few with the child and then have the child do some by himself. <br> | ||
| Line 31: | Line 34: | ||
=== Purpose === | === Purpose === | ||
| − | *To help the child gain a sensorial impression of fraction. | + | *To help the child gain a sensorial impression of fraction. |
*To introduce the concept and notation of fractions. | *To introduce the concept and notation of fractions. | ||
*To introduce sensorial exploration of equivalency among fractions. | *To introduce sensorial exploration of equivalency among fractions. | ||
Revision as of 21:17, 1 June 2009
Contents
Age
5
Materials
- Red fraction circles in green frames (ten circles: 1 is undivided and the others are divided into 2 -10 equal parts.
- Label with fractions written on them: 1, 1/2, 1/2, 1/3
- Pencil and paper
- Skittles
Preparation
This is an individual presentation.
Presentation
- Have the child bring over the two trays of fractions.
- Write a multiplication equation on the paper: 2/8 x 3 =
- Directress tells the child, “We will take 2/8 four times”.
- Take 2/10 one time, two times, three times and four times.
- Push them all together and have the child count the total number of 10ths. (8)
- Show the child how to write the answer.
- Do a few with the child and then have the child do some by himself.
Control Of Error
The Directress.
Points Of Interest
Purpose
- To help the child gain a sensorial impression of fraction.
- To introduce the concept and notation of fractions.
- To introduce sensorial exploration of equivalency among fractions.
- To introduce simple operations.
Variation
Links
Handouts/Attachments
