Give students repeated opportunities to practice efficient math strategies. **Topics Included:** • Thank You • Advanced estimation in word problems • Converting fractions and decimals mentally • Doubling patterns and quick estimates • Estimating square roots • Estimating subtraction • Estimating surface area and volume • Estimation in money • Estimation in proportion and scaling • Estimation in weather and climate • Reasonableness in estimation • Rounding fractions to benchmarks • Rounding mone