Difference between revisions of "Fractions: Substraction with same denominator"
From wikisori
(New page: === Age === <br> === Materials === <br> === Preparation === <br> === Presentation === <br> === Control Of Error === <br> === Points Of Interest === <br> === Purpose...) |
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| Line 1: | Line 1: | ||
=== Age === | === Age === | ||
| − | <br> | + | 4 1/2.<br> |
=== 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 === | ||
| − | <br> | + | This is an individual presentation.<br> |
=== Presentation === | === Presentation === | ||
| − | <br> | + | #Have the child bring over the two trays of fractions. |
| + | #Write a subtraction equation on the paper. 4/8 – 1/8 = | ||
| + | #Create 4/8 and place it in front of the tray. | ||
| + | #Directres points to 1/8 and tells the child, “I will now take away 1/8” | ||
| + | #Move 1/8 from the 4/8 and move it off to the side. | ||
| + | #Directress asks the child to count how many 8th are left. (3/8) | ||
| + | #Have the child write the answer. | ||
| + | #Repeat a few times.<br> | ||
=== Control Of Error === | === Control Of Error === | ||
| − | <br> | + | The Directress.<br> |
=== Points Of Interest === | === Points Of Interest === | ||
| − | <br> | + | <br> |
=== Purpose === | === Purpose === | ||
| − | <br> | + | <br> |
=== Variation === | === Variation === | ||
| − | <br> | + | <br> |
=== Links === | === Links === | ||
| − | <br> | + | <br> |
=== Handouts/Attachments === | === Handouts/Attachments === | ||
| − | <br> | + | <br> |
[[Category:Mathematics]] | [[Category:Mathematics]] | ||
Revision as of 21:11, 1 June 2009
Contents
Age
4 1/2.
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 subtraction equation on the paper. 4/8 – 1/8 =
- Create 4/8 and place it in front of the tray.
- Directres points to 1/8 and tells the child, “I will now take away 1/8”
- Move 1/8 from the 4/8 and move it off to the side.
- Directress asks the child to count how many 8th are left. (3/8)
- Have the child write the answer.
- Repeat a few times.
Control Of Error
The Directress.
Points Of Interest
Purpose
Variation
Links
Handouts/Attachments
