This short video and interactive assessment activity is designed to teach fourth graders about lengths of specific segments (metric units).
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting money using words.
This is a video overview of addition word problems (to sums of 100) for first graders.
This short video and interactive assessment activity is designed to teach third graders an overview of mixed operations.
This short video and interactive assessment activity is designed to teach second graders an overview of mixed operations (numbers to 1,000).
This short video and interactive assessment activity is designed to teach second graders about mixed operations: addition and subtraction i - word problems.
This short video and interactive assessment activity is designed to teach second graders about adding or subtracting lengths in one step.
This short video and interactive assessment activity is designed to teach fourth graders about adding or subtracting lengths in one step (english units).
This short video and interactive assessment activity is designed to teach second graders about adding and subtracting (numbers up to 20) - word problems.
This short video and interactive assessment activity is designed to teach fourth graders about adding of compound units of length (english units).
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting fractions - word problems.
This short video and interactive assessment activity is designed to teach fourth graders about adding 3 numbers - word problems.
This short video and interactive assessment activity is designed to teach fourth graders about adding capacities in compound units (english units).
This short video and interactive assessment activity is designed to teach fourth graders about adding decimals - word problems.
In this activity, students construct adding slide rules, scaled with linear calibrations like ordinary rulers. Students learn to move these scales relative to each other in ways that add and subtract distances, thus calculating sums and differences. This is Activity A1 in the "Far Out Math" educator's guide. Lessons within the guide include activities in which students measure, compare quantities as orders of magnitude, use scientific notation, and develop an understanding of exponents and logarithms using examples from NASA's GLAST mission. These are skills needed to understand the very large and very small quantities characteristic of astronomical observations. Note: In 2008, the GLAST mission was renamed Fermi, for the physicist Enrico Fermi.
This short video and interactive assessment activity is designed to teach fourth graders about adding, subtracting, multiplying and dividing.
This short video and interactive assessment activity is designed to teach fourth graders about adding, subtracting, and multiplying with parentheses.
This short video and interactive assessment activity is designed to teach fourth graders about adding unit lengths in one step (english units).
This short video and interactive assessment activity is designed to teach second graders about adding unit lengths in one step (english units).
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting.