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.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting money with pictures in columns.
This is an interactive assessment and video designed to teach Adding and Subtracting (Numbers up to 20) - Word Problems to first graders.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting terms (numbers to 100).
To add the vectors (x‰âپ,y‰âپ) and (x‰ââ,y‰ââ), we add the corresponding components from each vector: (x‰âپ+x‰ââ,y‰âپ+y‰ââ). Here's a concrete example: the sum of (2,4) and (1,5) is (2+1,4+5), which is (3,9). There's also a nice graphical way to add vectors, and the two ways will always result in the same vector.‰غـ‰غـ
This short video and interactive assessment activity is designed to teach fourth graders about addition: completing the addition sentence.
Students place markers on the numbers 2-12. Students toss two 6-sided dice, find the sum and remove a marker from that number, if there is still one. The first player to remove all markers wins the game. This game can be used as addition practice or as an introduction to the probability of the different outcomes of rolling two dice. This game was developed by a Monmouth University student for the Probability Fair. These games help students acquire proficiency in addition and subtraction facts.
Learn addition and subtraction.