Where does bloom collide?

A bloom is a rapid increase in the population of algae or phytoplankton in a body of water, often visible as a discolouration of the surface and sometimes producing toxins or oxygen depletion as the growth decays. Sverdrup's 1953 On Conditions for the Vernal Blooming of Phytoplankton set out the physical conditions, chiefly light and the depth of mixing, under which a spring bloom is triggered, and Smayda's 1997 review of harmful blooms surveyed the species and mechanisms involved. The referent is a living population surging in water, counted as cell density or chlorophyll concentration, and it is unrelated to a mass of worked iron, a scheme for classifying learning, or a probabilistic filter.[1][2]

Unit

A surge in algal population in water, as cells per litre or chlorophyll concentration

Recovery means

A bloom collapses as nutrients are exhausted or grazing and decay overtake growth

Measured by

Estimated from chlorophyll-a, cell counts, and satellite or in-water optical measurements

Bloom's taxonomy is a hierarchical classification of educational objectives named after the educational psychologist Benjamin S. Bloom, who led the committee that published it. Bloom's 1956 Taxonomy of Educational Objectives: Handbook I, Cognitive Domain ordered cognitive goals from recalling facts up through comprehension, application, analysis, synthesis, and evaluation, and Krathwohl's 2002 revision recast these as a two-dimensional grid of knowledge and cognitive process. The referent is a framework for describing what learners are asked to do, used to write objectives and test items, and it shares only a surname with the computing data structure and only a common word with algae or iron.[3][4]

Unit

One level or cell in the classification of a learning objective

Recovery means

Not applicable

Measured by

Applied by coding learning objectives and assessment items to levels of the taxonomy