This short video and interactive assessment activity is designed to teach third graders about solving for elapsed time related to rate.
This short video and interactive assessment activity is designed to teach third graders about solving for elapsed time in a sequence of events - word problems.
This is a text that covers the standard topics in a sophomore-level course in discrete mathematics: logic, sets, proof techniques, basic number theory, functions, relations, and elementary combinatorics, with an emphasis on motivation. It explains and clarifies the unwritten conventions in mathematics, and guides the students through a detailed discussion on how a proof is revised from its draft to a final polished form. Hands-on exercises help students understand a concept soon after learning it. The text adopts a spiral approach: many topics are revisited multiple times, sometimes from a different perspective or at a higher level of complexity. The goal is to slowly develop students’ problem-solving and writing skills.
This task uses language, "half of the stamps," that students in Grade 5 will come to associate with multiplication by the fraction 12. In Grade 3, many students will understand half of 120 to mean the number obtained by dividing 120 by 2. For students who are unfamiliar with this language the task provides a preparation for the later understanding that a fraction of a quantity is that fraction times the quantity.
Students practice counting forward or backward in this class activity.
This short video and interactive assessment activity is designed to teach fifth graders about subtracting mixed numbers with different denominators.
This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers to 100).
This short video and interactive assessment activity is designed to teach second graders about subtracting 3 numbers - word problems.
This short video and interactive assessment activity is designed to teach fifth graders about adding fractions with common denominators.
This short video and interactive assessment activity is designed to teach fifth graders about subtracting fractions with different denominators.
This short video and interactive assessment activity is designed to teach fifth graders about subtracting mixed numbers with common denominators.
This short video and interactive assessment activity is designed to teach second graders about subtracting one-digit numbers - word problems.
This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers up to 20).
This short video and interactive assessment activity is designed to teach fourth graders about subtraction: completing the subtraction sentence.
This short video and interactive assessment activity is designed to teach third graders about subtraction: completing the subtraction sentence.
This is a video and interactive assessment activity designed to help first graders learn about subtraction word problems up to twenty.
This video and accompanying interactive assessment practice was designed to teach Two-step Subtraction (Numbers to 100) - Word Problems to first graders.
This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers up to 10).
This short video and interactive assessment activity is designed to teach second graders about subtracting by counting backward with pictures.
This course features a video review and an assessment practice of subtracting by crossing out with pictures for word problems. It is aimed at first grade math students.