A lesson focused on identifying the value of a variable that satisfies a one-step equation through substitution and mental math.

A targeted 10-minute intervention lesson using visual models to help third-grade students grasp the concept of equivalent fractions.

Advanced situations involving 'Start Unknown' and mixed problem types.

Solving word problems with three addends focusing on commutative and associative properties.

Solving word problems with three addends using the 'Make a Ten' strategy.

Exploring 'Compare' situations where the 'smaller' quantity is unknown.

Exploring 'Compare' situations where the 'bigger' quantity is unknown.

Introducing 'Compare' situations to find the difference unknown using connecting cubes.

Focus on 'Put Together/Take Apart' with one addend unknown using tape diagrams.

Introducing 'Take From' situations where the change is unknown using part-part-whole mats.

Introducing 'Add To' situations where the change is unknown using 'Mystery Box' models.