Curated OER
Planetary Place Value
Third graders explore place value to the ten thousands place. This incredibly thorough, 24-page lesson has learners construct, order, and compare numbers to 9,999. This three-day lesson includes reteaching and extension activities...
Curated OER
Comparing Shamrock Numbers (B) -- Four Digit Numbers
In this math worksheet, students analyze the 3 numbers in each of 6 shamrocks. Students circle the greatest number in each shamrock.