Evaluation for 5.4a
Materials provide opportunities for students to develop academic mathematical language using visuals, manipulatives, or other language development strategies.
The Math Journeys grade 1 program provides students with opportunities to develop academic mathematical language using visuals, manipulatives, and other language development strategies. In the “Vista general de tramo—B: pensamiento aditivo,” the materials include dedicated vocabulary sections that introduce mathematical terms related to addition, subtraction, composing and decomposing numbers, and additive situations. The overview incorporates visual representations such as additive boxes, number lines, equations, and other mathematical models that help students develop and use academic mathematical language. Throughout the broader learning pathway, students discuss strategies, explain the relationships between quantities, represent addition and subtraction situations using multiple models, and communicate their mathematical reasoning. These opportunities encourage students to listen, speak, read, and write using mathematical vocabulary while making connections between visual models and mathematical concepts.
While participating in journey A1.8, “Estimar y comparar,” students develop academic mathematical language through visuals, manipulatives, and language development strategies. The educator introduces the academic term
estimar by showing students a cup containing snap cubes and asking, “¿Cuántos cubitos creen que necesitamos para llenar el vaso?” Students make estimates, share their predictions, and use manipulatives to test their ideas. To encourage students to compare their estimates with the actual quantity and explain their reasoning using precise mathematical language, the educator then introduces the word
comparar by asking questions such as “¿El resultado es más grande o más pequeño de lo que te habías imaginado?” and “¿Qué diferencia hay? Es decir, ¿cuántos cubitos más/menos habías dicho en tu hipótesis?” Additionally, the EB guidance recommends using the “critique, correct, clarify” strategy, prompting the educator to read a student’s estimation statement and help students identify the estimate, justify their reasoning, use comparative terms such as
más que,
menos que, or
cantidad igual, and explain what they would change after counting the snap cubes.