Antiguos sistemas de numeración
EL FOMENTO DE LA LECTURA EN EL AULA DE MATEMÁTICAS: APRENDER A LEER MATEMÁTICAS
6-8 year olds 1.3 order and compare rational numbers 1.5 number theory concepts (e.g., primes, composites, factors, divisibility ,and multiples) in mathematical problem situations
For a 1st or 2nd grade math class, this would be a fun and interactive worksheet to do in small groups. KR
REPIN ME PLEASE :) - Freebie hundred chart in 28 different styles including basic black and white.
Addition Flappy Tabs - A fun way to visualize and manipulate addition facts.