Educational Insights Hot Dots Let's Master Grade 3 Math Set with Hot Dots Pen Give your kids the boost they need for school success with this fun, interactive Hot Dots set and interactive Talking Pen 100 Richly illustrated lessons that cover key math skills: place value, area & perimeter, time, shapes & geometry, fractions, measurement, and more! Press the Hot Dots Pen to an answer dot to hear encouraging words for correct responses, and gentle redirection for incorrect responses. Helps develop critical learning skills, and provides confidence-building feedback. Encourages self-paced independent learning. 85 K-level lessons and 15 advanced lessons in 2 spiral-bound books. Plus, a Talking Hot Dots Pen (requires 2 AAA batteries, not included). Develops early math skills necessary for school success Provides confidence-building feedback Encourages parent-child interaction 85 First-grade-level lessons in these areas: Counting &amp; Numbers, Time, Shapes/Geometry, Fractions, Measurement, Math Facts, Money, Place Value, Algebra, Area/Perimeter, PLUS 15 challenge lessons for advanced learners Book set includes Hot Dots interactive, electronic pen Hot Dots pen requires 2 AAA batteries (not included)