Jolanthe at Homeschool Creations has put together a fun lesson plan for St. Patrick's Day featuring rainbows and leprechauns! While you'll have to visit her site for the full details {printables, links, etc.} - here are a few of the highlights!

The Science of Color Mixing

science rainbow color mixing st. patrick's day preschool activity — Photo Source: homeschoolcreations.blogspot.com

Set up six {clear} containers in a circle. Fill alternating containers {three in total} three-quarters full with water. [NOTE: It might to fun to add in a lesson on measuring, labeling each container like the ones below and inviting your students to 'be precise' when mixing.]

clear containers marked for measuring and volume preschool activity — Photo Source: earlylearning-eaton.blogspot.com

Add red, yellow, and blue food coloring or liquid watercolor paints to the water in the cup, one color for each prepared container. Then have fun mixing neighboring colors, pouring one-fourth of the colored liquid from each cup into the empty container. At they end, you'll have all six colors of the rainbow and each cup will be half full of liquid.

rainbow size sequencing preschool printable lesson — Photo Source: confessionsofahomeschooler.blogspot.com

Rainbow Size Sequencing

Using the printable from Erica at Confessions of a Homeschooler {Jolanthe provides a link to the worksheet in her resource list}, have your students practice size discrimination and sequencing by ordering the rainbow cutouts from largest to smallest, then from smallest to largest, and discussing vocabulary such as...

Small, smaller, smallest
Big, bigger, biggest
Smaller than
Bigger than

Other Fun Activities...

Roll a rainbow game from Erica at Confessions of a Homeschooler
Roll a leprechaun game from Jessica at Mrs. Meacham's Classroom Snapshots
Treasure hunt sensory bin
M&M rainbow sorting mat from Jo at Making Learning Fun

Be sure to visit Jolanthe's site for more great links, lessons, printables, and resources!

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