Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Factorize

For Students Pre-K - 1st Standards
This resource investigates the concept of factors by creating rectangular arrays. The interactive tool allows learners to relate area to multiplication.
Interactive
GeoGebra

Geo Gebra: Area Model: Multiplying Fractions

For Students 5th Standards
Explore this interactive to visualize what it means to multiply two fractions together. Use the sliders to change the numerators and denominators and move one fraction bar image on top of the other. The product is represented by the area...
Lesson Plan
Alabama Learning Exchange

Alex: Exploring Prime Numbers

For Teachers 3rd - 5th Standards
Exploring Prime Numbers is a hands-on, minds-on math lesson that engages students in the discovery of prime numbers through the construction of multiplication arrays. Students then extend on their background knowledge of multiples and...
Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: One Hundred Hungry Ants [Pdf]

For Students 2nd - 3rd
This is an activity for exploring arrays after reading the story One Hundred Hungry Ants by Elinor J.Pincze.
Interactive
Math Is Fun

Math Is Fun: Multiply Blocks

For Students 2nd - 4th
An array of chocolate squares is pictured and students must multiply the number of rows by the number of columns and click on the product in the table shown.