Pre-K-2
Students explore sets of 19 and 20. They count up to 20, construct and decompose sets up to 20, and record the decomposition.
3-5
Students review basic geometric terms related to triangles. They explore these terms and other geometric concepts by modeling them on the geoboard.
3-5
Students continue to explore geometric concepts by modeling on the geoboard. Communication is the Process Standard emphasized in this lesson.
3-5
Students identify lines of symmetry and congruent figures. They explore these concepts with paper cutting and modeling on the geoboard.
3-5
This lesson provides students with an exploration of the geometric figures Wassily Kandinsky used in his art. Students participate in a scavenger hunt to become familiar with Kandinsky’s works and the geometric figures used in his paintings.
3-5
Students use paintings studied in the previous lesson to connect their knowledge of geometric shapes and terms with Kandinsky’s use of geometric figures.
3-5
This lesson allows students to apply what they have learned in previous lessons by designing their own art. Students use Kandinsky’s style of art and their own creativity to make paintings that reflect their understanding of geometry.
Pre-K-2
In this lesson, students have an opportunity to explore the foundations of equivalence, an important step in their development of algebraic thinking as they see how quantities relate. Students explore equivalence by comparing weights of different collections of objects.
3-5
In this lesson, students apply their knowledge of addition equations to create number sentences using an electronic balance tool.
6-8
Students typically learn about the concepts of identity, inverse,
commutativity, and associativity by exploring the four basic operations
(+, –, ×, and ÷) with integers. In this lesson, students investigate
these concepts using a geometric model. Moves are performed with a
rectangle, and the results of an operation that combines two moves are
analyzed. Students determine if the operation is commutative or
associative; if an identity element exists; or if there are inverses
for any of the moves.
