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Direct linkKurz, Terri L.; Garcia, Jorge – Mathematics Teacher, 2015
Since the 1950s, the understanding of how the base 10 system works has been encouraged through alternative base systems (Price 1995; Woodward 2004). If high school students are given opportunities to learn other base systems and analyze what they denote, we believe that they will better understand the structure of base 10 and its operations…
Descriptors: Mathematics Instruction, Mathematical Concepts, Teaching Methods, Grade 8
Peer reviewedGregg, Jeff – Mathematics Teacher, 1997
Describes an episode involving conditional statements and the notion of logical equivalence that occurred in a 10th-grade college-preparatory geometry class. Illustrates some of the confusion that can arise in connection with this topic, for both students and teachers. (ASK)
Descriptors: Geometry, Grade 10, Mathematical Concepts, Mathematical Logic
Peer reviewedPerham, Arnold E.; Perham, Bernadette H.; Perham, Faustine L. – Mathematics Teacher, 1997
Describes how students in a 10th-grade geometry class discovered relationships that led to the development of conjectures, theorems, and directions of proofs regarding the centroid of a triangle. (ASK)
Descriptors: Calculators, Computer Software, Educational Technology, Geometric Concepts
Peer reviewedCasey, James – Mathematics Teacher, 1994
Presents an activity to introduce students to the intrinsic curvature of surfaces using a wide variety of objects. Describes student discoveries, several variations on the project, and possible classroom discussion topics. A reproducible student worksheet and 17 references are included. (MKR)
Descriptors: Class Activities, Discovery Learning, Geometric Constructions, Grade 10
