April 22 Cover Image

Apr. 22 Math & Science Puzzle: First World-Wide Observance Earth Day

April 22 of the Mystery Year was the first worldwide observance of Earth Day. Skills in this cross-curricular warm-up activity are finding circumference of a circle, converting measurements, expressing a ratio as a unit rate in decimal form, prime numbers, and divisibility.

Your Zip download includes printable/digital PDFs:

1-page printable Student Puzzle
1-page Answer Key with sample solutions
1-page version of puzzle with expanding form fields – use with Acrobat Reader
A complete file including the student puzzle, answer key, 3 pages of Teacher Notes including step-by-step Solutions, Extensions , Historical Notes, and a variety of professional development support.
1-page How to Use History-Mystery Puzzles

Price: $1.50

Common Core Standard: 7.G.4, 5.MD.1, 7.RP.1, 7.NS.2.d

File Format: Zip and PDF

Write a Review

Quantity

Apr. 22 Math & Environment Puzzle: Earth Day with Graphing Activity

$2.00

Free Shipping.

Add to Cart

April 7 Math & Science Puzzle: Mars Odyssey Spacecraft Is Launched

$1.50

Free Shipping.

Add to Cart

Feb. 16 Math & Ancient History: King Tutankhamun's Tomb Is Opened

$1.50

Free Shipping.

Add to Cart

Apr. 22 Math & Science Puzzle: First World-Wide Observance Earth Day

Related Products