Elementary Resources Search Results Return to Elementary Resources 1″ Color Square Tiles (by Didax) 10-Frame Bundle 120 Chart (by Didax) 1st Grade Problem Solving: Additive Comparison 1st Grade Problem Solving: Part-Whole Addition 1st Grade Problem Solving: Part-Whole Missing Addend 1st Grade Problem Solving: Part-Whole Subtraction 4 in a Row: Roll and Round 5- and 10-Frame Bundle 5-Frame Bundle