T-Math’s enthusiasm for numbers and solutions to real-world problems makes this a title that math teachers can sink their teeth into. From the moment he bursts out of his shell, T-Math thinks mathematically, making number sentences to express how many digits he has and the number of kids in his family. He counts footprints by twos and uses fives and tens to group and count a herd of triceratops. He checks his subtraction with addition, draws pictures to solve word problems, creates pictographs and thinks in pie graphs. And it is his estimation skills that save his sister, who gets stranded on the wrong side of a canyon after an earthquake. From that day on the entire family appreciated his love for math and learned all they could from him. Backmatter provides an index of the different skills T-Math uses. Cushman’s brightly colored acrylic illustrations nicely show readers the math involved without diminishing in any way the personalities of the dinosaurs. The ultimate melding of a topic kids love with knowledge they need. *(Picture book. 5-8) *