Prove it! grade Common Core math problems} - Could be used as an exit card. Adapt for algebra: give a problem and the solution. Have kids show work steps and a worm explanation.

Students race against the clock to find all the factors of a number, and they score points for the number of correct factors they find! But watch out! If they list a single incorrect factor, they score 0 points for that round!

FREE -- Great Math Common Core ideas by grade level with math centers ready to print broken down by standard.

Math Songs, Poems, and Chants

Evaluating Algebraic Expressions Word Problems

Operations and Algebraic Thinking: Word Problems Pack 1

Number of the day chart. Great daily math warm up to get the students in the right mindset. Can build number sense across grade levels if this is utilized consistently building-wide.

Outstanding Math Guide for Common Core Combo -- Grade - The Perfect Classroom Resource

Question and Answer board ~ post the answer and have students write a word problem to match. Students do any operation or even 2 step problems. Option: have students check each other's questions.

Dream House: An Additive Area Project (Common Core FREEBIE! could be cool to work with a math teacher and create a writing lesson that describes the dream house, too!