You can download some PowerPoints here http://www.ircsd.org/webpages/dyoung/subitizing.cfm for students to practice their subitizing skills. Using PowerPoints gives you the ability to control the amount of time students have to look at the images, allows you to give time for students to explain what they saw, and allows you to go back to am image so students can check for accuracy.
- Dice/Domino Patterns
- Irregular dot patterns (up to 7)
- Combinations to 5
- Combinations to 10 and Doubles 1-5
- Combinations to 20 and Doubles 6-10
- Dot patterns, Numbers 1-5 http://www.youtube.com/watch?v=8rBI1-uCnew
- Dot patterns, Numbers 1-10 http://www.youtube.com/watch?v=KRv5SYlaufY
- More dot patterns http://www.youtube.com/watch?v=POSgVl07Go0
- 5-Frames http://www.youtube.com/watch?v=aRgcWtvTHJE
- 5-Frames (more advanced) http://www.youtube.com/watch?v=piFCzBz4Jz8
- 10-Frames http://www.youtube.com/watch?v=CbUTRHLtRlo
- 10-Frames (more advanced) http://www.youtube.com/watch?v=wRR9LK3zfho
- Combinations to 5, by the end of Kindergarten
- Combinations to 10, by the end of 1st grade
- Combination to 20, by the end of 2nd grade.
- Provide opportunities to see and work with quantities in groups
- Finger Patterns
- 5-, 10-, and 20-Frames
- Rekenreks (Math Racks)
- AL Abacas (AVMR Course 2 Kit)
- 100 bead string (AVMR Course 2 Kit)
- When students are using a counting strategy (this is a stage of mathematical problem solving that all students go through), the second addend, for addition, and the subtrahend, for subtraction, should not be larger than 5.
- Tools that will make students reliant on counting by 1’s (TouchPoints, Number Lines) should be avoided. Empty or Open Number Lines, which promote using groups, will be discussed in a future Monday Math Message.
A few electronic resources for working on fractions:
Here’s a video http://www.youtube.com/watch?v=d96clBxPP0I (Who doesn’t like singing food?)
and a website with activities for a variety of levels http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/fractions/index.htm
You can find more fraction activities here http://www.maths-games.org/fraction-games.html