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TEKS Math Standard: 4.1.E

create and use representations to organize, record, and communicate mathematical ideas

Letters With Symmetry
Letters With Symmetry
Let’s group letters by their symmetry, then create symmetrical words, and then symmetrical sentences!
Gr 4
Geometry Image: University Ave
Geometry Image: University Ave
What odd and interesting shapes can your students find in this geometric image?
Gr 3-5
Geometry Image: Victoria Conference Center
Geometry Image: Victoria Conference Center
What odd and interesting shapes can your students find in this geometric image?
Gr 3-5
Math Curiosity: Klauber’s Triangle
Math Curiosity: Klauber’s Triangle
In 1932, a leading authority on rattlesnakes, Laurence Klauber, discovered a startling pattern within a triangle of primes.
Gr 2-8
Math Curiosity: Ulam Spiral
Math Curiosity: Ulam Spiral
What if we make a huge spiral of numbers and then highlight only the primes? Well, a bunch of weird patterns show up!
Gr 1-4
Math Curiosity: A Pattern Packed Triangle
Math Curiosity: A Pattern Packed Triangle
Pascal’s pattern-packed triangle is a potent puzzle for pupils to ponder.
Gr 4-5
Create Your Own Operation
Create Your Own Operation
The commutative and associative properties are a whole lot more interesting when you apply them to a mathematical operation that you created!
Gr 3-4
Math Curiosity: The Coloring Problem
Math Curiosity: The Coloring Problem
No video gets me more email from students! How few colors can you use to color in any map so that no two, neighboring regions are the same color?
Gr 2-8
Why Is Our Calendar So Weird!?
Why Is Our Calendar So Weird!?
Why are there 12 months? Why don’t weeks fit into months evenly? Why don’t weeks fit into the year evenly? What’s going on with the calendar!
Gr 3-4
Grouping Quadrilaterals In A Hierarchy
Grouping Quadrilaterals In A Hierarchy
Can we classify quadrilaterals like we classify living things?
Gr 1-5
Fractals: Sierpinski’s Triangle
Fractals: Sierpinski’s Triangle
What if this triangle pattern just kept repeating… forever!?
Furnishing A Hotel
Furnishing A Hotel
Design and furnish hotel rooms on a budget. Real math, real constraints, real decisions. Then pitch your hotel to investors.
Gr 4-7