Students use, with increasing confidence, problem-solving approaches to investigate and explain mathematical content. They make and test conjectures. They use tables and graphs as tools to interpret expressions, equations, and inequalities.

Students explore functions, function rules, and data tables. They explore terms of linear functions. Students use computers to analyze the functions. Students write short sentences to explain data tables and simple algebraic expressions.

Where did the pH scale come from? Take a deeper look at a most important measure of ion concentration using a simulated physical determination. Young chemists prepare a series of dilutions after determining a dilution factor for the...

Students solve problems and answer questions about two young men attemtping to earn money by cutting cords of wood.

Learners explore number sense by solving consumer math problems. In this pattern identification instructional activity, students analyze a list of numerical and geometric patterns while predicting the future outcome. Learners utilize...

Students gain a feeling for the significance of the Hardy-Weinberg Equilibrium without using algebra but participating in an interactice game.

Ninth graders investigate the functional relationship of different environmental phenomena. In this math lesson, 9th graders create models of various natural disasters. They use logarithmic and exponential functions to interpret...

Turn students into detectives as they decipher encrypted messages.  Introduce your class to modular arithmetic and have a little fun encrypting and decoding secret messages. The activity does not hit many content standards, but...

Students practice simple addition and subtraction. They identify relationships among whole numbers.

Students work with dominoes to recognize the number of spots on each side as they relate to addition facts. For this seeing doubles lesson, students make triangle shaped flash cards for the double facts. Students represent the correct...