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.

Focus on 'Put Together' and 'Take Apart' situations where the total is unknown.

Focus on 'Take From' situations with the result unknown using counters and visual crossing-out methods.

Focus on 'Add To' situations with the result unknown using concrete objects and five-frames.

Students learn the incrementing strategy to add numbers up to 100 by breaking the second addend into tens and ones and 'jumping' along a number line. This visual approach builds mental math fluency and place value understanding.

A cumulative review and assessment day. Students complete a 'Final Inspection' quiz to demonstrate mastery and participate in a collaborative 'Lab Graduation' challenge.

Students apply their subtraction skills to solve complex, multi-step word problems. The lesson focuses on identifying keywords and creating 'evidence logs' to organize mathematical steps.

Addresses the specific challenge of regrouping when the minuend contains one or more zeros. Students learn the 'Middle Man' strategy to pass value from the hundreds place through the tens to the ones.

Advances to problems requiring students to regroup twice (from both the hundreds and tens places). Students practice identifying when multiple swaps are necessary to complete a calculation.

Focuses on the fundamentals of 3-digit subtraction with a single instance of regrouping (either tens or ones). Students learn the conceptual "Great Trade" strategy and apply it to basic lab blueprint problems.

A focused lesson on using cross-multiplication to solve algebraic proportions where one side is a whole number.

General administrative and planning resources for the Math Intensive Lab sequence, including the unit overview and sequence-wide instructional supports.

A fun, toy-themed lesson introducing second graders to two-step word problems using equal groups and sharing (foundations of multiplication and division). Students will use visual representations to solve problems involving toys in a shop inventory.

A visually-driven lesson focused on comparing and ordering decimals using the 'Ghost Zero' strategy and place value analysis within a galactic navigation theme.