Curated OER
My Spelling Words: Spelling List #80
In this spelling worksheet, students practice writing their spelling words. Next they write the definition to given words and then alphabetize their spelling words. There are 23 questions on this one-page worksheet.
Curated OER
My Spelling Words: Spelling List #37
In this spelling worksheet, students read and write their 13 spelling words. In this list, all words have a mathematical definition. Students look words up in the dictionary and write their definition.
Curated OER
My Spelling Words: Spelling Lists #143
In this spelling worksheet, students read and write 12 spelling words All words are three to four-letter words and contain the short "a" sound. students use two words in a sentence and then alphabetize the spelling words.
Purple Math
Purplemath: Adding and Subtracting Matrices
Demonstrates how to add and subtract matrices, explains why the addition or subtraction sometimes can't be done, and gives an example of how matrix addition is used in homework problems.