The goal for selecting the released set of test items was to have approximately 25% of each of the full item sets for mathematics content knowledge (MCK) and mathematics pedagogical content knowledge (MPCK) that would represent the full range of difficulty, content, and item format used in the TEDS-M study. The initial step in the selection was to take a stratified random sample of the items, stratifying on both proportion correct and knowledge dimensions of MCK and MPCK. The next step was to consider if the selected items were part of item sets. If they were, an attempt was made to use the full set so that the full context of the items would be made public. Representation of the anchor points was another important consideration as was balance of item formats. The test items were then reviewed to determine if they efficiently and accurately represented the full item set. A reduced set of items was kept to make possible a link between TEDS-M and a future follow-up study. The set of primary released items consists of: (1) 24 MCK items; and (2) 10 MPCK. The set of secondary released items consists of: (1) 23 MCK items; and (2) 9 MPCK items. (Contains 3 footnotes.) [For the main report, "TEDS-M 2008 User Guide for the International Database," see ED542383. For related reports, see "TEDS-M 2008 User Guide for the International Database. Supplement 1: International Version of the TEDS-M Questionnaires" (ED542382), "TEDS-M 2008 User Guide for the International Database. Supplement 2: National Adaptations of the TEDS-M Questionnaires" (ED542381), and "TEDS-M 2008 User Guide for the International Database. Supplement 3: Variables Derived from the Educator and Future Teacher Data" (ED542385).] [This paper was edited with Maria Teresa Tatto.]