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← All Standards
Grade 2
Data Analysis
2.DA.A
2.DA.A15
2.DA.A15.a
2.DA.A16
2.DA.A16.a
2.DA.A16.b
Geometry
2.G.A
2.G.A.25
2.G.A.25.a
2.G.A.26
2.G.A.27
2.G.A.27.a
Measurement
2.M.A
2.M.A.17
2.M.A.18
2.M.A.19
2.M.A.20
2.M.B.22
2.M.C
2.M.C.24
2.M.C.24.c
Number & Operations: Base Ten
2.NBT.A
2.NBT.A.6
2.NBT.A.6.a
2.NBT.A.7
2.NBT.A.8
2.NBT.A.9
2.NBT.B
2.NBT.B.10
2.NBT.B.11
2.NBT.B.12
2.NBT.B.12.a
2.NBT.B.13
2.NBT.B.14
Operations & Algebraic Thinking
2.OA.A
2.OA.A.1
2.OA.B
2.OA.B.2
2.OA.B.2.a
2.OA.C
2.OA.C.3
2.OA.C.3.a
2.OA.C.4
2.OA.C.4.a
2.OA.D
2.OA.D.5
Alabama Math Standard: 2.G.A
Reason with shapes and their attributes.
What’s In My Brain: H vs Arrow
Two columns. One is an example, one isn’t. Can you figure out the hidden rule before the big reveal?
Gr 1, 2, 3, 4, 5, 8
What’s In My Brain: Pentagon vs Pentagon
We’re looking at regular vs irregular polygons.
Gr 1-8
Grouping Shapes by Parallel and Perpendicular Sides
Which shapes go together based on parallel and perpendicular lines?
Gr 1, 2, 3, 4, 5, 8
Letters With Symmetry
Let’s group letters by their symmetry, then create symmetrical words, and then
symmetrical sentences!
Gr 3, 4, 5, 6, 8
Math Curiosity: Magic Triangles
Can you make each side of this triangle add up to 9 using the digits 1-6?
Gr 1, 2, 3, 4, 8
Geometry Image: Esplanade Theaters
What odd and interesting shapes can your students find in this geometric image?
Gr 1, 2, 3, 4, 5, 8
Geometry Image: University Ave
What odd and interesting shapes can your students find in this geometric image?
Gr 1-5
Geometry Image: Victoria Conference Center
What odd and interesting shapes can your students find in this geometric image?
Gr 1-5
Geometry Image: Skytree
What odd and interesting shapes can your students find in this geometric image?
Gr 1, 2, 3, 4, 5, 7, 8
Geometry Image: Steigerwald
What odd and interesting shapes can your students find in this geometric image?
Gr 1, 2, 3, 4, 5, 7
How Many Will There Be? Triangles Within Triangles
A triangle splits and splits and splits again. How many will there be in step 20?
Gr 1-4
Math Curiosity: Klauber’s Triangle
In 1932, a leading authority on rattlesnakes, Laurence Klauber, discovered a startling pattern within a triangle of primes.
Gr 1-5
What’s In My Brain: Trapezoids or Not?
Which are trapezoids and which are not?
Gr 1-8
Same Perimeter, Different Area For Rectangles
Can two rectangles have the same perimeter but…
different areas!?
Gr 3, 4, 6, 7
Intersecting Angles and Streets
There can
never
be just one angle.
Gr 1, 2, 3, 4, 7, 8
The Angles of a Triangle
Why tell a kid the rules of a triangle when they can
discover them!?
Gr 1, 2, 3, 4, 5, 7, 8
Grouping Quadrilaterals In A Hierarchy
Can we classify quadrilaterals like we classify living things?
Gr 1-5
Lines, Line Segments, Rays, and Infinity!
A lesson about lines, line segments, and rays that avoids dull memorization. Instead, we ponder this delightful question:
Which is longer, a ray or a line?
Then, kids consider what these different geometric concepts would think about each other.
Gr 1, 4
Deducing the Area of Triangles
Using patterns, students try to deduce
where
that area formula came from.
Gr 1, 2, 3, 4, 6, 7
