When baking, measuring spoons are way more accurate than eyeballing it.
Tips
mistakes
量 here is read liáng (verb, 'to measure'), not liàng (noun, 'quantity'). The same character is liàng in 数量 (shùliàng, quantity) and 重量 (zhòngliàng, weight). Companion item: 量杯 (liángbēi, measuring cup).