Students work in a group to prepare a poster about a new number system. They research a variety of number systems, create new symbols for their original number system and develop a tutorial for the class.

Second graders explore estimation and place value. In this place value lesson, 2nd graders estimate and construct numbers while working with spider activities. Students use addition and subtraction to compare estimates. Resources and...

For this number systems worksheet, 6th graders complete problems where they must find percentages of whole numbers. Students complete 16 problems.

In this count like an Egyptian worksheet, 5th graders convert 24 Egyptian hieroglyphs into modern day numbers, then write 15 modern numbers as hieroglyphs;  the conversion code is given on each page.

In this integers and words worksheet, students practice the skill of converting integers into words and vice-versa. Students share their conversions with their classmates.