Educational Insights Hot Dots Getting Ready for 2nd Grade Kids get a jumpstart on the skills they need to succeed in the second grade with this fun and interactive activity set! Reading lessons teach synonyms, antonyms, prefixes and suffixes, and more; math lessons cover fractions, word problems, and place value. Set includes: 1 Hot Dots Pen, 2 Spiral-bound books with 100 self-checking lessons (60 math and 50 reading) Simply touch the pen to an answer dot for positive reinforcement (correct responses) or gentle redirection (incorrect responses). Pen requires 2 AAA batteries (not included).