Cognitive Models Underlying Students' Formulation of Simple Linear Equations
Data are presented to show that errors in formulating algebraic equations are not primarily due to syntactic translation, as has been assumed in the literature. Furthermore, it is shown that the reversal error is common even when none of the previously published causes of the error is applicable. A new explanation is required and is proposed in this paper. An examination of students' errors leads us to suggest that students generally construct from the natural language statement a cognitive model of compared unequal quantities. They formulate equations by trying to represent the model directly or by drawing information from it. This hypothesis is supported by research on the comprehension of relationships by linguists, pyscholinguists and psychologists. Data were collected from 281 students in grade 9 in free response format and from 1048 students in grades 8, 9, and 10 who completed a multiple-choice item.
The constant of integration, typically denoted by $C$, is essential in indefinite integrals to account for the vertical shift of the original function.
1
/
of
1
----------------------My Store
ARM & HAMMER Plus OxiClean with Odor Blasters Liquid Laundry Detergent, Fresh Burst, 200.2 Fl Oz
ARM & HAMMER Plus OxiClean with Odor Blasters Liquid Laundry Detergent, Fresh Burst, 200.2 Fl Oz
Regular price
Rs. 0.00
Regular price
Sale price
Rs. 0.00
Quantity
Couldn't load pickup availability
- Removes tough odors: 200.2 fl oz bottle of ARM & HAMMER Plus OxiClean with Odor Blasters Liquid Laundry Detergent in a Fresh Burst Scent
- 3X odor power: Concentrated with 3X odor fighters in every load (vs. leading value detergent) for fresh, clean laundry
- Fights tough odors: Powered by Odor Blasters, this liquid detergent tackles tough odors like pet odors, damp clothes, sweat, musty towels, body odor
- Triple power action: Powered by OxiClean, this dermatologist-tested detergent fights tough odors, boosts lasting freshness, and blasts away stains
- Fresh Burst scent: This laundry detergent leaves your clothes with a crisp, long-lasting scent
- Powerful deep clean: This high-efficiency (HE) laundry detergent is formulated to deeply clean clothes and deliver lasting freshness
Share
