“This LES report is a synthesis of 14 Instructional Core (IC) studies that fit the inclusion criteria. $3,655,921 was awarded to the studies through the NIE Education Research Funding Programme (ERFP) in the 3rd tranche (2013–2017) of funding from MOE. Six of the 14 selected studies were Tier 1, 7 were Tier 2, and 1 was Tier 3 (Figure 3) (See Annex A for a detailed explanation of the selection criteria).”--Introduction.