Difference between revisions of "Subtraction Tables - Subtraction With Short Bead Stair"
From wikisori
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=== Age === | === Age === | ||
| − | 3-6 <br> | + | 3-6 <br> |
=== Materials === | === Materials === | ||
| − | #One set of Short Bead Stair. | + | #One set of Short Bead Stair. |
| − | #Work cards for the child to complete with Subtraction Tables up to 9. | + | #Work cards for the child to complete with Subtraction Tables up to 9. |
#Subtraction Summary Tables. | #Subtraction Summary Tables. | ||
| − | <br> | + | <br> |
=== Preparation === | === Preparation === | ||
| − | <br> | + | <br> |
=== Presentation === | === Presentation === | ||
| − | #Directress invites the child to build a triangle with the Short Bead Stair. | + | #Directress invites the child to build a triangle with the Short Bead Stair. |
| − | #Directress reads the first example on the work card, e.g. 9-3. | + | #Directress reads the first example on the work card, e.g. 9-3. |
| − | #Directress selects the 9 Bead Bar and then counts 3 beads from the right end. Cover the 3 beads and count the remainder left uncovered. | + | #Directress selects the 9 Bead Bar and then counts 3 beads from the right end. |
| − | #Explain that 9-3=6. Directress then shows the child how to record the answer on the answer square. | + | #Cover the 3 beads and count the remainder left uncovered. |
| + | #Explain that 9-3=6. | ||
| + | #Directress then shows the child how to record the answer on the answer square. | ||
| − | <br> | + | <br> |
=== Control Of Error === | === Control Of Error === | ||
| − | #The Short Bead Stair acts as a control of error because the quantities are fixed. | + | #The Short Bead Stair acts as a control of error because the quantities are fixed. |
#The Summary of Subtraction tables makes it possible for the child to correct his own work. | #The Summary of Subtraction tables makes it possible for the child to correct his own work. | ||
| − | <br> | + | <br> |
=== Points Of Interest === | === Points Of Interest === | ||
| − | <br> | + | <br> |
=== Purpose === | === Purpose === | ||
| Line 39: | Line 41: | ||
*To give the child further experience in handling numbers up to 9 with concrete materials and practice in recording subtraction tables. | *To give the child further experience in handling numbers up to 9 with concrete materials and practice in recording subtraction tables. | ||
| − | <br> | + | <br> |
=== Variation === | === Variation === | ||
| − | <br> | + | <br> |
=== Handouts/Attachment === | === Handouts/Attachment === | ||
| − | <br> | + | <br> |
| − | [[Category:Mathematics]][[Category:Mathematics_3-6]] | + | [[Category:Mathematics]] [[Category:Mathematics_3-6]] |
Latest revision as of 04:51, 15 October 2009
Contents
Age
3-6
Materials
- One set of Short Bead Stair.
- Work cards for the child to complete with Subtraction Tables up to 9.
- Subtraction Summary Tables.
Preparation
Presentation
- Directress invites the child to build a triangle with the Short Bead Stair.
- Directress reads the first example on the work card, e.g. 9-3.
- Directress selects the 9 Bead Bar and then counts 3 beads from the right end.
- Cover the 3 beads and count the remainder left uncovered.
- Explain that 9-3=6.
- Directress then shows the child how to record the answer on the answer square.
Control Of Error
- The Short Bead Stair acts as a control of error because the quantities are fixed.
- The Summary of Subtraction tables makes it possible for the child to correct his own work.
Points Of Interest
Purpose
- To give the child further experience in handling numbers up to 9 with concrete materials and practice in recording subtraction tables.
Variation
Handouts/Attachment
