Laskelmasarjaan

Laskelmasarjaan is a Finnish term used in mathematics education to describe a structured sequence or collection of calculation tasks designed to practice a specific skill or concept. The word is formed from laskelma (calculation) and sarja (series), and laskelmasarjaan is the illative form meaning “into the calculation series” or “to the calculation set.”

In practice, a laskelmasarja consists of a series of steps or problems that progress in a coherent way, often focusing on a particular operation, such as addition of fractions, multiplication of decimals, or unit conversions. Each task typically builds on the previous one, gradually increasing complexity or introducing a new constraint to reinforce procedural fluency and accuracy. A laskelmasarja may be used as classroom activities, homework sequences, or assessment tasks.

Linguistically, the illative form laskelmasarjaan is used to indicate movement into or inclusion within the series, as in sentences like “Siirryimme laskelmasarjaan, jossa käsittelemme murtolukujen yhteenlaskua” or “Laskelmasarjaan kuului viisi tehtävää.” The concept is common in Finnish textbooks and teacher resources, though the exact structure and naming can vary by curriculum.

See also: laskeminen, laskutehtävä, matemaattinen harjoittelu.