In his first month in charge, Beale guided Rangers to four wins in four in the league over a busy festive period.
It started with a 3-2 victory over Hibernian at Ibrox, before late drama in Aberdeen saw the Gers to a 3-2 win at Pittodrie.
Rangers then travelled to Dingwall to take on Ross County with John Lundstram’s goal the difference in the 1-0 victory, before rounding off the month with a 3-0 win at home to Motherwell.
Speaking as he picked-up the award, Beale said: “I'm pleased to be receiving this award on behalf of the full management team. Returning to the club in late November was a big moment for me personally and I am very pleased with the start we have made as a group.
“The players deserve a lot of credit for our results in December as it’s them who go on the pitch and play. We won four games and scored a good number of goals. We also used 20 players over the four games so that goes to show it was a real squad effort.
“We are now fully focused and looking ahead to an exciting January in the League and two cup competitions. We are determined to make a strong start to 2023.”
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