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Why it matters
Why it matters
Making sense of our number system is crucial for comprehending why different mathematical procedures work
Building flexibility with quantities (e.g. number sense) supports estimation, problem solving, and application of formal mathematics in everyday situations.
Activities
Activities
Counting Containers
Counting Containers
Idea taken from the Developing Mathematical Thinking Institutedmtinstitute.com
Materials Needed:
Materials Needed:
paper bags, plastic bags, or small containers
sticky notes, labels, or painter's/masking tape
small countable objects (ex. toys, beads, beans, etc.)
Set Up:
Set Up:
label the containers with a number using the sticky notes or tape
place the countable objects in different places in the house (or leave them in their current location if it's accessible to students
Directions:
Directions:
your child will pick one of the counting containers
they will go on a scavenger hunt to find objects to fill their container with
they should count each object as it goes into the container
then have them count backwards as they remove the objects from the container
Bead Counting
Bead Counting
Materials Needed:
Materials Needed:
beads or cheerios
pipe cleaners, string, or yarn
labels or masking tape
Set Up:
Set Up:
use the tape to label the pipe cleaners or yarn with numbers
(choose numbers between 7 and 30)
Directions:
Directions:
Your child will string the correct number of beads onto the pipe cleaner or string
Then have them count backwards as they remove the beads
Variations:
Variations:
Make the beads worth 10 or 100
Three Other Ways
Idea taken from Teaching Student Centered Mathematics by Van de Walle et al.Three Other Ways
Materials Needed:
Materials Needed:
index cards
paper and pencil
Set Up:
Set Up:
Write various numbers onto index cards. Choose about 10 numbers from the suggested ranges below.
1st grade: 20-40
2nd grade: 20-100
3rd grade: 50-200
4th and 4th grade: 100-1000
Directions:
Directions:
Your child chooses an index card and thinks of three different ways to decompose (break apart) the number by place value.
Have them draw a visual model for the number and write an equation
Base Ten Riddles
Idea taken from Teaching Student Centered Mathematics by Van de Walle et al.Base Ten Riddles
Materials Needed:
Materials Needed:
The Base 10 Riddles written on index cards or printed out
Directions:
Directions:
Your child chooses a Base 10 Riddle to solve.
After solving a few, they can create their own.
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