OSAT Middle Level/Intermediate Mathematics (225) case studies
OSAT Middle Level/Intermediate Mathematics (225) · Put your knowledge to work in context.
Middle Level/Intermediate Mathematics (225) is a Certification Examinations for Oklahoma Educators (CEOE) test used in Oklahoma's educator certification process for candidates who want to teach mathematics at the middle level or intermediate grades. Candidates have the option to take either the CEOE version or the National Evaluation Series version of this test; both versions assess the same critical content areas, so the choice is about which program path fits your situation rather than about different content. The OSAT Middle Level/Intermediate Mathematics (225) case studies are 5 cases and about 3,134 words.
1Additive Reasoning in a Paint-Mixing Ratio
Rivera’s seventh-grade class is working on proportional relationships. She poses: ‘A paint mixture uses 3 parts blue to 5 parts yellow.
700 words, about 4 min2Break-Even Analysis with Two Membership Plans
Chen’s algebra class is comparing two fitness-club plans. Club A charges a 25 sign-up fee plus 8 per month; Club B charges a 45 sign-up fee plus 5 per month.
634 words, about 3 min3Linear Versus Area Scaling in a Garden Design
Patel’s students are redesigning a rectangular garden bed that is 6 m by 4 m. The new design increases each dimension by 50%, making it 9 m by 6 m.
627 words, about 3 min4Choosing a Typical Value with a Verified Outlier
Okafor’s class records the number of books read last month by nine students: 2, 3, 3, 4, 4, 5, 5, 6, and 32. The 32 is a verified value, not a typo, from a student who read a long series.
594 words, about 3 min5Separating Joint and Conditional Probability in a Survey
Grant’s class surveys 200 students about two activities. They find that 120 students are in the after-school program, 80 play a sport, and 50 students are in both.
579 words, about 3 min