Cart Continue Shopping “PD Library” has been added to your cart. Continue shopping “Challenging the Hidden Gifted Underachiever (6-Hour)” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × Differentiating Math Instruction from A to Z $20.00 Differentiating Math Instruction from A to Z quantity $20.00 × PD Library $90.00 PD Library quantity $90.00 × Challenging the Hidden Gifted Underachiever (6-Hour) $90.00 Challenging the Hidden Gifted Underachiever (6-Hour) quantity $90.00 Coupon: Apply coupon Update cart Cart totals Subtotal $200.00 Total $200.00 Proceed to checkout